Do nothing

In this experiment, the lungs of suckling mice were taken out, and the cells were separated and purified and planted in culture flasks.The experimental procedure is simple to say, but the suckling mouse is only the size of a thumb, and the lungs are only a few millimeters long, requiring quite delicate operations.

After reconfirming that the equipment in the ultra-clean table is complete, I disinfected my hands in the rest of the way, and put on sterile gloves when I reached into the ultra-clean table.

The temperature in the laboratory is stable at 22 degrees, which is too cold for suckling mice that have not yet grown fur. The little mice curled up into pinkish purple meat balls, and even their skin was wrinkled, looking quite pitiful.

"Have you ever done animal experiments before?" Yu Cheng adjusted the positions of the bottles and cans, clearing out an operating area.

"I did. We have an animal experiment course. Rats, mice, and rabbits have all been dissected."

Yu Cheng picked up a little mouse and put it in front of the glass for Ling Lu to watch: "We are using suckling rats this time, and these mice have not been born for 48 hours. The advantage of using suckling mice is..."

He stopped: "Xiaolu, guess what?"

"Hmm... was born short, less affected by the external environment?"

"That's a little bit. What else?"

Ling Lu looked at the naked little mice whose eyes hadn't opened yet: "Uh, I haven't eaten milk, so there's less pollution?"

"This is similar to the first one you said." Yu Cheng stopped embarrassing him and explained, "There is a limit to the number of cell divisions, right? So compared to adult mice and young mice, newborn babies Rat cells have a stronger ability to proliferate. Some experiments even use fetal rats, that is, they give pregnant rats a caesarean section. When I was in my first year of research, my brother and I took fetal rats, and that scene was really... swallowed alive." Yu Cheng shook his head with a smile .

Ling Lu couldn't help thinking about it, and shivered empathetically.Then he asked curiously, "Then after the dissection, will you sew it back to the mouse mother?"

"Of course I don't sew it up, I just execute it."

"Oh..." Ling Lu felt a little cruel, and couldn't help frowning slightly.

Yu Cheng joked: "Could it be that you still want to give it a confinement?"

Ling Lu was amused by him.Seeing that Ling Lu's expression softened, Yu Cheng explained with a smile: "The dissected rat can't be used for other experiments. You can't sew its belly up to make it have a second child, right? The laboratory doesn't have that much space. and resources to give it a pension, so I can only give it a good time."

"Yes. I understand." Ling Lu still sighed.

"Scientific research is still very cruel." Yu Cheng fixed the suckling mouse in his hand on the operating table, and picked up a pair of curved tweezers after re-sterilizing, "Our experiment is the same. For example, open the chest without anesthesia."

Ling Lu was surprised: "Teacher, don't you need scissors?"

"The skin of the suckling mouse is very tender, so you don't need to use scissors." Yu Cheng picked up the skin on the suckling mouse's chest, and with a light pull, the skin was torn open.The suckling rat was fixed on the board and could not struggle, but the blood overflowed little by little, and the muscle filaments were clearly visible.

Ling Lu felt pain even looking at it.

"This is called ophthalmic curved tweezers. You should pay attention, these tweezers have been in contact with the external skin, and they are already in a relatively polluted state." He used these tweezers to fix the skin, exposing the trunk muscles of the suckling rat, and from the box far away. Take out a pair of small scissors, "This is the ophthalmic scissors, here is the diaphragm, cut the ribs along it... Be careful not to touch the contaminated area, including the skin of the suckling mouse and this ophthalmic forceps..."

The suckling mouse's chest is fully opened, and the breathing lungs can already be seen clearly.At this step, Yu Cheng didn't speak, just picked up the second ophthalmic forceps, quickly took out the lung lobe, and put it into the culture bottle beside him.

"Is there saline in it?" Ling Lu asked.

"No, this is Hanks solution. Hanks, the main ingredients are balanced salts. It has the same pH value and osmotic pressure as the cells grow, and the cells can survive in it for several hours. However, this liquid is not nutritious enough, so I only It can be used to wash cells and cannot be used as a culture medium alone."

Ling Lu nodded repeatedly, and wrote down all the main points in the small notebook.

This is the end of the material collection part.Next is rinsing, fine shearing, pipetting, and preparation of cell suspension.Finally, the cells were inoculated in the culture flask, and the experimental process was basically completed.

Seeing pieces of lung tissue turning into bottles of cell fluid, Ling Lu felt mixed emotions.On the one hand, Yu Cheng did it cleanly and beautifully, and he was very happy to watch it from the side.On the other hand, the suckling rats whose lungs had been removed lay disembodied in the waste box, forty small corpses piled up into a mountain of red and white meat.This picture is really cruel.

"Almost." Yu Cheng asked Ling Lu to put on gloves, and then passed the culture bottle out from the ultra-clean bench, "Put it in the incubator. It's the green box next door..."

Ling Lu carefully held the culture bottle and came to the next door: "Is it this one? Which floor is it on?"

"On the top floor, move slowly."

Ling Lu responded, and gently put the culture bottle in, the liquid in the bottle barely shook.The culture solution is rose red, and the liquid level of each bottle is on the same horizontal line, which is neat and beautiful.Although Ling Lu only did a little bit of work, he couldn't help feeling a sense of accomplishment at this moment.

When he returned to the original room, he saw that the tabletop of the ultra-clean table was almost cleaned up. Yu Cheng opened the isolation glass and was moving everything out.

"Hey, where's the dead mouse?" Ling Lu was most concerned about this.

Yu Cheng poked the yellow plastic bag on the table, and there was a sign of biological pollution on the bag: "Animal carcasses must be disposed of in a unified way. I'll put the carcasses, please help me put these bottles and jars into the basket. Then we will go to eat."

After speaking, he took the bag and left.Looking at his back, Ling Lu suddenly realized that it was his tenderness.

He must have figured out that I didn't want to see the body.

The heartstrings were suddenly twitched, making a sweet vibrato.

After a rough calculation, I have been in the laboratory for five hours.The meal time was long past, but Ling Lu didn't feel hungry until he walked out of the hospital.

Yu Cheng said that he would reward him, so he found a clean and tidy small restaurant and ordered several dishes.Ling Lu twitched his index finger when he smelled the aroma, and suddenly found Yu Cheng looking at him with a smile after wolfing it down.

"Eat, don't be shy." Yu Cheng picked up a piece of meat for him.

Ling Lu hiccupped, blushed, put down his chopsticks and said, "I'm too hasty to eat, I'll take my time."

Yu Cheng smiled heartily.Suddenly said: "By the way, aren't you preparing for the postgraduate entrance examination? Have you decided what subject to apply for?"

"Not yet. Anyway, we can wait until the time of registration to find a tutor, so let's concentrate on reviewing now. I'm still worried that I won't pass the written test."

"You're definitely fine. But you still have to choose your mentor first, or you'll be picked out in advance."

Ling Lu held his chin: "Well... I've just started my internship, and I haven't stayed in many departments. I really haven't thought about which department I'm interested in..."

"What about our department?"

Ling Lu recalled the list of master supervisors for a while: "Director Wang? I think he's so fierce, I'm a little afraid of him..."

Yu Cheng smiled: "Then are you afraid of me?"

Ling Lu blinked in puzzlement.

"I also have the qualifications for a master's supervisor, you can apply for my graduate degree."

"Ah?" Ling Lu was surprised at first, then flattered, "Really!"

"Well, it just so happens that you just passed the application this year, and the list of master supervisors may not have been updated yet. Of course, you have to pass the written test first." Yu Cheng smiled, "You should also prepare well for the interview, I won't let you down."

"En!" Ling Lu nodded vigorously, his joy was beyond words, "I will definitely live up to the teacher's expectations!"

Yu Cheng smiled and said, "Eat quickly, and go back and read a book."

Ling Lu nodded happily, suddenly raised his eyes, and asked cautiously: "Then... can I go to your place to read?"

"today?"

Ling Lu was a little flustered, and quickly explained: "Well...I've been a little..."

"Okay." Yu Cheng picked up some food for him, and said with a smile, "You are going to be my disciple, so of course I will satisfy you with this little request."

Disciple who opens the door!

When Ling Lu thinks of being able to study with Yu Cheng all the time in the future, he is happy, shy, sweet...all the beautiful emotions are holding hands, waltzing in his heart.

When I came to the staff dormitory, as soon as I opened the door, the aroma of bergamot came to my face.Ling Lu saw the bergamot on the desk at a glance, and found that it had begun to mature, the bottom turned yellow, and the fingertips were still tender green.The taste has also become sweet, a bit like fruit.

"I don't know if I can eat it..." Ling Lu held up the bergamot and looked at it curiously.

Yu Cheng looked at his unsuspecting back, closed the door casually, and said with a smile: "It's so beautiful, how can you be willing to eat it?"

"No, no, no." Ling Lu thought it was funny, and hurriedly put down his schoolbag, "I'm a graduate student! How can I be thinking about eating all day long! What's the taste of bergamot? Well, soothing the liver, relieving depression, regulating qi and neutralizing dryness Wet and phlegm-"

"Pungent, bitter, sour." Yu Cheng pushed open the window and continued casually, "Sex warm."

Ling Lu was amazed: "Wow, teacher, you are so amazing, you still remember it after not taking the Chinese medicine test for so many years!"

"Because it's very common." Yu Cheng turned around to pour water for him, with a gentle and calm voice, "Old Yan often uses bergamot."

Ling Lu nodded with deep sympathy: "Yes, I saw that you also practiced bergamot when you copied the recipe before. Ah—" he suddenly remembered something, "I'm on duty tomorrow, so I can't copy the recipe!"

Yu Cheng turned on the desk lamp and said with a smile, "It's okay. There are plenty of opportunities."

"That's right, there will be a long time to come."

If you really become his graduate student, you can go to the clinic with him justifiably.

Thinking of this, Ling Lu couldn't help smiling.

In the evening of October, there is still residual heat of summer.The wind blew the curtains, sending the faint hum of cicadas.Some bugs circled around the desk lamp and bumped into the lamp tube one after another.

Ling Lu read the book seriously, looking up at the ceiling from time to time, reciting the contents of the book.Yu Cheng sat opposite him, reading an ancient book.

He heard Ling Lu's voice reciting in a low voice, so he kept thinking of Yan Ke.Beibei was like him back then, he liked to sit by the window and study.But Beibei was impatient. She always raised her head after reading for a while, smiled at him, and seduced him.

Uncle, let's go out and play.

Yu Cheng couldn't help being lost in thought, a gentle smile appeared on the corner of his mouth.

Ling Lu didn't notice the change in Yu Cheng.He was reviewing the physical examination. There was a lot of content in this chapter and he needed to memorize it completely. Therefore, he followed the order in the book and touched his body all the way, but when he closed the book, he would remember the wrong order.He couldn't help sighing.

"Teacher, will the interview be tested in operation?" Ling Lu pouted, lying helplessly on the table, "The physical examination is so difficult, I can't memorize it..."

Yu Cheng came back to his senses, glanced at his textbooks, and said with a smile: "Anything is possible in the interview, so you have to prepare. Which test do you not know?"

"I know everything, but I can't remember the order, and it's easy to miss." Ling Lu showed him the notes he had made, all of which were marked with one, two, three, four, five, "For example, the head and face examination..."

"You do it again and show me."

Ling Lu patted his head, murmured: "First observe the shape of the head..."

Yu Cheng suddenly moved the chair to his side, sat upright and said, "You do it on me. You also do it on a dummy during the exam. You have to get used to it."

Ling Lu was taken aback for a moment, and his breathing was obviously a little short, but he still let out a "huh" and stretched out his hand towards him.

"First observe whether the size and shape of the head are abnormal, and palpate..." Ling Lu unconsciously avoids his eyes, and gently presses his head, "... Is there any tenderness on the head... mass..."

"continue."

Ling Lu took a deep breath, raised his eyes and looked at him: "Then observe the distribution of the face and eyebrows, whether they fall off, the shape of the eyeballs, whether the upper eyelids are drooping, whether the eyelids are edematous, inverted eyelids, closure disorders, etc. .”

Yu Cheng encouraged: "You memorized it very well, continue."

"Then check your eyesight..." Ling Lu looked at the table to find a substitute for the eye chart, picked up the Buddha's hand, and held it in front of Yu Cheng, "Put the near vision chart 33 centimeters in front of your eyes, and check the near vision of the left and right eyes respectively."

"Your eye chart is amazing." Yu Cheng couldn't help laughing, "I can't even see it, I'm afraid I'm blind."

Ling Lu also laughed, feeling less nervous immediately.

Emotions are relaxed and thoughts are clear.He narrated the operation procedure fluently, made symbolic gestures on Yu Cheng's face a few times, and quickly finished the head and face examination.

"You call this "can't remember?" Yu Cheng smiled, "Do you want to recite it backwards to be at ease?"

Ling Lu rubbed his nose in embarrassment: "I haven't done it on real people before. After doing one set continuously, I found out that it's quite easy to memorize."

"The main thing is to practice. It's good to be proficient." Yu Cheng glanced at the textbook and said, "Then continue, chest examination."

He walked to the bed naturally and lay down.Ling Lu followed with the textbook, and suddenly blushed.

"First of all, fully expose..." Ling Lu whispered more and more, "Boobs..."

"I won't take off my clothes." Yu Cheng smiled.

Ling Lu nodded quickly, but his heart became flustered, and he forgot what the next step was.He covered his face with the teaching material, and read softly: "Observe the shape of the chest, symmetry, skin, breathing movement... breasts, etc."

"Men should also observe the breasts." Yu Cheng's voice was very calm, without any emotion, "The development of male breasts indicates that the level of sex hormones is disordered. There will be physiological breast development in the newborn period. If it is an adult male, it must be Consider pathological factors such as G pill cancer, adrenal gland tumor, liver cirrhosis and alcoholism."

Ling Lu nodded and listened, and only belatedly took out a pen to record after he finished speaking.

"Palpate." Yu Cheng said.

Ling Lu calmed down for a while, took another deep breath, and told himself that this was teaching and a routine physical examination, so don't think too much about it.

Treat him like a dummy!

【】

"Mm, mm..." Ling Lu blushed, and couldn't help asking, "Teacher, will you use a real person in the exam?"

"It depends on the situation. If it is a more convenient operation, the examiner may ask you to perform it on him."

Isn't that the end?

If Yu Cheng also gets this kind of question when interviewing him...

Ling Lu's mind was blank now, so he had to peek at the textbook again, and then continued: "Start from the upper and outer quadrants,"...【】

Yu Cheng couldn't help laughing, Ling Lu withdrew his hand in surprise, and looked at him anxiously.

"You can't be so nervous." Yu Cheng held his hand, put it back on his chest, and said gently, "Although the physical examination is simple, it can quickly and effectively discover many signs. Do you know how many women pass the R Can adenocarcinoma be detected early by palpation? We are doctors, and what is lying in front of us is not a patient, but the eight major systems of the respiratory and digestive nerves, the carrier of the disease, and an exam question for you to apply what you have learned. (Note)”

He really treated me as a student, preaching and teaching me, but I...

Ling Lu lowered his head, deeply ashamed.Yu Cheng smiled, moved his hand to the apex of his heart, stared at him and said, "Remember, what you touch is not the flesh, but life. Don't be nervous, take your time, you will get used to it."

Puff, da, puff, da.

Ling Lu heard his first heart sound and second heart sound, which was transmitted to his heart along the blood vessels and nerves in his arm.There was a warm, holy feeling in his chest, and he began to feel it—the sound of life.

The depths of the soul are touched.There was a gushing of warm and strong emotion.

Ling Lu almost burst into tears.He sniffled and smiled again.

"Okay, teacher, then I will continue."

Note: The eight major systems are the motor system, nervous system, endocrine system, blood circulation system, respiratory system, digestive system, urinary system, and reproductive system.

Chapter 24~26

A new week has begun.In the past few days, Yan Ke became nervous whenever he saw Yu Cheng, afraid that he would talk about the experiment.Yu Cheng did mention it, of course, not to blame Yan Ke for his absence, but to tell him that the cells were growing well and let him have a look at them when he had time.

Yan Keru was granted amnesty.

Finally made it to Friday again.At noon, everyone rested on their desks. Yan Ke couldn't sleep, so he took off his white coat and went to the dirty staircase to smoke (Note).

He hadn't started smoking since he moved into the apartment, and he wasn't used to it yet.But the smell of smoke relieves anxiety, and he likes the feeling of smoking in his lungs.

As a respiratory doctor, he knows exactly what a smoker's lungs look like.But what does that matter, anyway—

He pushed the window open a little.Of course, the windows here are also half-sealed, and it is impossible for people to jump off the building.Looking at the busy traffic outside the window, Yan Ke lost his mind unconsciously until his hands were burned by cigarette butts.

"Oh!" He let go instinctively, and the cigarette butt fell to the ground.His fingers were a little sore, he glanced at, slightly red and tar-marked.

But it hurts...not badly.

Is it because I have taken too many painkillers recently and the sensitivity of the nerve endings has decreased?

Yan Ke bent down to pick up the cigarette butt, and touched the flame with his fingertips.The burning pain stabbed like an electric current, which made him suddenly think of——

I am still alive.

Even if the brain is numb, the body is not a walking dead after all, and will respond to external stimuli.

An indescribable longing was inexplicably ignited in his heart. He pointed the cigarette butt at his wrist and was about to press it down when the dirty ladder opened with a ding.

Yan Ke quickly stubbed out the cigarette butt and threw it away, turned his back, and heard the nurse come out humming and greeted him.

Yan Ke watched him go away with a smile, and at the same time regained some sense.

Don't be here, there is surveillance.

Don't put it on the wrist, the little uncle will be worried when he sees it, and others will ask.

He pretended to be calm and went back to the dressing room, put on a white coat, and then asked the nurse for a roll of gauze to wrap up his burned fingers.

Yu Cheng saw it and asked him what happened to his finger.Yan Ke rubbed his nose and said with a smile that he was caught by the door.Yu Cheng hesitated to speak.He originally wanted to take Yan Ke to change the fluid for the cells tonight, but now he had no choice but to give up.

In contrast, Ling Lu was much more active.

Changing the liquid is actually quite simple.Cells will grow on the wall, but bacteria and fungi will not, so a little flushing when changing the fluid can remove pollutants and replenish the nutrient solution.

During the rest of the journey, the aseptic operation was very strict, and there was almost no pollution in the culture bottle.He explained to Ling Lu the key points of changing the liquid, and demonstrated it himself, and finally left a bottle for Ling Lu to change.

Ling Lu was both happy and nervous, always remembering the aseptic operation, for fear that his own mistakes would affect the results of the experiment.Yu Cheng told him to relax, this bottle was specially set aside and not included in the final data.

——This bottle was originally reserved for Yan Ke to practice.

After changing the liquid, Yu Cheng sat in front of the microscope and turned on the light source.Ling Lu was a little surprised: "Mr. Yu, this microscope seems to be different from the one used in our school."

"Isn't the school using an optical microscope?"

"Yes, yes, this is not optics?"

"This is a fluorescence microscope, which uses ultraviolet light as a light source, and its resolution is higher than that of an optical microscope. Moreover, some substances in cells, such as chlorophyll, can be observed through fluorescence reactions. Optical microscopes cannot."

Yu Cheng put the culture bottle under the camera, adjusted the position carefully, and then beckoned, "Come on, come and see."

Ling Lu leaned over curiously, and was pleasantly surprised to find that every cell was clearly visible: "Wow, so lung cells look like this!"

Ling Lu couldn't help holding the eyepiece with both hands, and Yu Cheng said again: "You can adjust the field of view yourself."

Ling Lu was about to ask how to adjust it, when Yu Cheng suddenly grabbed his hand and put it on the gear next to the eyepiece: "Here, there are two gears, horizontal and vertical, which can be adjusted in different directions. Try it yourself."

Ling Lu felt the back of his hand warm up, Yu Cheng held his left hand and turned the gear slightly.The field of view under the mirror moves slowly.

"Put your right hand here, and you can fine-tune the magnification." The right hand is also lightly held and placed on the small knob on the right.

In this way, it is almost a gesture of being surrounded.

Ling Lu could even feel the warm chest behind him, but in just a moment, Yu Cheng let go of his hand.

Ling Lu couldn't help being disappointed, and at the same time felt ashamed for his wild thinking.

Actually it is not necessary.

Yu Cheng saw his slightly flushed cheeks, which were as tender as ripe peaches.The line of sight followed his neck, shoulders, and slid down to his narrow waist.

Just looking at a microscope, why do you have to raise your ass?

Yu Cheng narrowed his eyes calmly.Standing up suddenly, one hand lightly rests on Ling Lu's waist, feeling the warmth of this beautiful body.

Ling Lu straightened up abruptly, staring at him with watery eyes like a frightened fawn.

Yu Cheng admired his bewildered and innocent cute expression as if nothing had happened, and at the same time pushed the chair over: "Sit down and watch." It seemed that the physical contact just now was just to make him sit down.

"Mm...hmm." Ling Lu responded in a panic, and awkwardly pulled the chair over.

It was just the two of them in the lab, so each other's breathing was clearly audible.Yu Cheng knew that Ling Lu was holding back his breath, because his heartbeat was so violent that his clothes were trembling slightly.

So excited, is it a virgin?

At least the back should be the first time?

Yu Cheng checked the time, it was only eight o'clock.He didn't want to let the deer go back so early, so he asked casually, "Did you see anything else besides the cells?"

"I see. There are grains..." Ling Lu carefully moved out of his position, and Yu Cheng leaned over to have a look.

"It's fungal spores, it's pollution... why are there so many?" Yu Cheng was a little surprised, subconsciously pushed Ling Lu away, and carefully observed the bottle of cells.

Ling Lu stood aside very embarrassed: "Uh, it seems that I made this bottle..."

Yu Cheng looked at the label on the bottle, laughed and said, "It really is."

Ling Lu blushed all of a sudden.Yu Cheng comforted: "It's okay, it's very good to be able to do this for the first time. I still remember the first time I did a cell experiment. I planted it and took it under a microscope. Wow, there are so many cells, I was very happy." I asked my senior brother to come and see it. The senior brother laughed at me and said, "Your fungus is really well cultivated."

Ling Lu couldn't help laughing: "Then what should I do? Change the fluid and wash it off?"

"That's what I thought at the time too. Wouldn't it be enough to add some antifungal drugs and change the solution a few more times? As a result, after a week, the fungus grew more and more, and all the cells died. My brother just threw my board away. He even said that he wanted to report me for growing mushrooms in an incubator. I am so heartbroken, the results of the first experiment, alas!"

Ling Lu laughed out loud and regained his confidence.

In this way, the two talked and laughed, and it was already eleven o'clock before they knew it.

"Oops, is the access control of your dormitory coming?" Yu Cheng looked at the time pretending to be worried.

"There is no access control in the dormitory here." Ling Lu stuck out his tongue, "But it's time to go."

The two changed out of their white coats and walked to the entrance of the hospital together.The last bus left long ago, and Yu Cheng led him to the intersection to wait for a taxi.

"Teacher Yu, are our two dormitories on the way?" Although Ling Lu was reluctant, he still said obediently, "I'll just go back by myself."

Yu Cheng said: "It's too late, I'm not at ease because you don't know the place where you live. Besides, I'm going to blame me for forgetting the time tonight."

Ling Lu didn't insist anymore, just smiled and said "Okay."

After waiting for almost half an hour, only three taxis passed by, and all of them were occupied.Yu Cheng had guessed this ending a long time ago, so he suggested logically: "How about we walk back? It will probably take 10 to [-] minutes to walk from here to your dormitory."

Ling Lu was very happy, as if he had wanted to say this a long time ago, but he was embarrassed.

So the two walked side by side towards the student dormitory.The road near the hospital is very wide, there are very few vehicles at this time, and the surroundings are completely silent.

"It feels like the whole road belongs to us." Ling Lu couldn't help but walked to the middle of the road, opened his arms and breathed in the cool morning air, feeling very good.

"I used to feel this way when I wandered around the school in the middle of the night. It seems that the whole school is mine..." Yu Cheng looked at him with a smile, and glanced back from time to time to make sure that there was no car coming in the distance.

"Is it also an experiment?"

"Ah."

"Mr. Yu, you like doing experiments so much, why did you come to become a Chinese medicine practitioner? Isn't there more experimentation in Western medicine?"

Yu Cheng laughed and said, "Because I studied literature in high school, I can't apply for western medicine."

"what?"

Yu Cheng joked: "Am I not like a literary youth?"

"No, no, no." Ling Lu thought for a while, showing a naive expression of thinking, "I think you have a bookish air... not the feeling of a nerd, but a scholarly, uh, literati temperament?" He paused Paused, "But sometimes you...for example, when doing experiments, when giving me lectures, and...when teaching me physical examination..."

As he spoke, his voice lowered, his face flushed slightly, obviously falling into some kind of distracted memory.

Yu Cheng was in a good mood and waited patiently for him to continue.

"Actually, I often feel that you are like a western doctor. Didn't you say 'the patient is the carrier of the disease, a collection of the eight major systems'? This is not like what traditional Chinese medicine says..." Ling Lu said with a smile in an almost whispering tone , "In short, it is a temperamental contradiction, both rational and emotional, both cold and—"

gentle?

Yu Cheng glanced back at him, Ling Lu met his gaze, and said in a daze: "—gentleness."

Yu Cheng just smiled and didn't speak.

The street lamps on both sides cast a warm yellow halo, overlapping the shadows of the two.The night was lonely, and the whole world was so quiet that it seemed that only the two of them were left.The air inhaled into the lungs is slightly cold, but the two people walking side by side can feel the body temperature close to each other.

It seems that this road is infinitely long, as if this way can go to the end of the world.

The atmosphere is so good, why are you still hesitating?

"Cross this road and we'll be there." Yu Cheng looked in the direction of the student dormitory and said with a smile, "It feels longer to walk at night than during the day."

He took a step forward.Xiaolu finally couldn't help it, and stretched out his hand to hold him.

But only dared to pull the sleeves.Carefully, lovingly.

"Teacher..." Ling Lu called out in a low voice.

"Ok?"

"I like you."

Little fool, finally willing to say.

Yu Cheng looked at the streetlight across the road and silently started counting down the seconds.

5, 6, 7.

There was a moth under the lamp, banging desperately against the lampshade.

13, 14, 15.

Ling Lu's hand also slowly loosened, and he could feel the stiffness of his movements.

almost.

"...Xiaolu." Yu Cheng didn't turn his head, and fine-tuned the depth of his voice, "Go back."

"...Mmm." Ling Lu sniffled and didn't say anything else.Such a long silence is already an answer.

Across the road is the student dormitory.At this time, all the dormitory lights have been turned off, and the entire dormitory building is shrouded in darkness.

Yu Cheng accompanied Ling Lu all the way to the stairs. Ling Lu kept his head down. At this moment, he finally raised his eyes, tried his best to smile and said, "Thank you, teacher, goodbye, teacher."

Yu Cheng didn't speak.

But when he turned around disheartened, he suddenly stretched out his hand and pulled him back forcefully.

"?!" Before Ling Lu could react, he was pushed against the wall.

They looked at each other briefly so that Ling Lu could clearly see the complicated emotions in his eyes, and then kissed him.

Out of personal preference, Yu Cheng chose to kiss with tongue.From Ling Lu's heaving chest and chaotic panting, it can be seen that he is also enjoying it.

Yu Cheng deliberately squeezed between his legs, leaving him nowhere to escape.But he pretended not to notice it and didn't comfort him.

She just held his face and kissed him affectionately.

Ling Lu responded to him clumsily, wrapping his hands around his neck involuntarily.But Yu Cheng suddenly pushed him away at this moment, showing a complicated expression.

Ling Lu panted, looking up at him in bewilderment.

Yu Cheng sighed softly and kissed his lips again.This time, it was superficial, gentle and restrained.

"Go back." Yu Cheng said.

Leaving the warm embrace, Ling Lu nodded blankly.

Yu Cheng walked out of the stairs, turned his head, saw Ling Lu, and happened to look back at him.As soon as their eyes met, Ling Lu ran away shyly.

So cute.

Tonight he will toss and turn, he will relive this kiss over and over again, and he will sleep all night for this ambiguous attitude.

Yu Cheng felt very happy.

At the same time, Zhang Xingduan, who had just finished socializing, passed by Yan Ke's apartment and went upstairs on a whim.

"Sleeping so early?" He groped into the bed in the dark, his fingers skillfully threading through the pajamas.

"Hmm..." Yan Ke closed his eyes and didn't respond.

Zhang Xingduan stopped, raised his eyebrows and said, "Did you just play by yourself?"

"No..." Yan Ke went to pull up his pants in a daze, and stopped halfway through taking them off, as if he had fallen asleep.

Zhang Xingduan was rarely in a good mood, and after playing with him for a while, Yan Ke still fell asleep as if he had died.

"Yan Ke?" Zhang Xingduan suddenly felt that something was wrong, got up and turned on the light, and found that Yan Ke's expression was very bad.He frowned and opened the bedside table, which was actually full of medicine boxes.Zhang Xingduan turned pale with shock, picked up the medicine box and saw that it was all psychotropic drugs.

"Damn—" He grabbed Yan Ke's collar angrily, "What did you eat? Are you looking for death?!"

"I didn't eat much..." Yan Ke was shaken uncomfortably by him, half-closed his eyes, and said unresponsively, "I wanted to sleep... Who knew you were coming..."

Zhang Xingduan picked him up roughly, Yan Ke pushed him dissatisfied: "What are you doing..."

"Go to the emergency room for gastric lavage!" Zhang Xingduan pulled up his pants, put on his coat, and said angrily, "Stand up for me!"

"No need to wash... I just ate... a little..." Yan Ke struggled irritably.

"How much!"

"Four slices..."

"What four pieces!"

"painkiller……"

"anything else!"

"Sleeping pills... four or five pills..." Yan Ke couldn't stand still, hanging limply on his body, and said impatiently, "What's the fuss... this amount is fine..."

"You said it's okay, is it because you've given it to patients and it's okay, or have you been eating it all the time?" Zhang Xingduan forcibly dragged him to the door, freed his hand to open the door, and Yan Ke slipped off his shoulder.Seeing this, Zhang Xingduan became even more irritable, and cursed, "You're a fucking bird and you still say it's okay! Can you stop tossing around! Can't you be quiet for two days!"

"Don't yell at me..." Yan Ke covered his ears in pain, and begged softly, "It's all right... just let me sleep..."

Seeing his pitiful appearance, Zhang Xingduan couldn't bear it, so he carried him back to the bed.Yan Ke fell asleep quickly, but Zhang Xingduan was restless.Inadvertently caught sight of the gauze in Yan Ke's hand again, he opened it suspiciously and saw a broken blister, dirty, with traces of tar on the side.

Cigarette hot? !

When did he start smoking?Still self-harm? !

Zhang Xingduan was so angry that he wanted to pull Yu Cheng over to let him have a good look at Yan Ke's ghost.What will happen if it goes on like this?Really want to kill someone?

Two bastards!None of them are good things!

Yan Ke was thrown off the quilt the next morning, and the glare of the sun hit his face, forcing him to struggle to wake up.Zhang Xingduan stood in front of him, with a smile on his face.

"What are you doing..." Yan Ke looked at him in fear, trying to pull the quilt.

"Get up. Go to the hospital." Zhang Xingduan threw a suit of clothes on him.

"I don't go to work today." Yan Ke's memory of what happened last night was blurred, and he asked cautiously, "Yesterday..."

"It's not a traditional Chinese medicine hospital. Go to the brain disease hospital, and I'll make an appointment with a specialist for you."

Yan Ke was taken aback: "Brain disease?"

"Go see depression!" Zhang Xingduan pulled him up irritably, and forced him to put on clothes, "Didn't you count yourself when you were sick?! Go see a doctor!"

"You're crazy! I'm just in a bad mood, how can I be depressed?" Yan Ke said dissatisfiedly, "I'm rich and the second generation don't have to worry about food and clothing, so what kind of depression do I have?"

Zhang Xingduan frowned, thought for a while, and his expression softened.He touched Yan Ke's face with pity, and said softly: "Ake, you actually understand in your heart, stop deceiving yourself and others. Be obedient, okay?"

Yan Ke stopped resisting and bit his lip silently.

Sure enough, eat soft but not hard.Yan Ke is a cat with teeth and claws, biting and scratching just because of fear.His aggression is fake, he is actually vulnerable.

Zhang Xingduan took the clothes and coaxed softly: "Hey, put them on by yourself. I'll take you