Use mobile phones to teach the ancients to do infrastructure

Why does this colored glaze resemble his stone slab?

He looked at Chen Bai with a frown.

Chen Bo hurriedly made a patch, "These are my avatars, and the main body is the slate in your hand."

Without squinting, all interpretations are in his hands.

In order to dispel Qi Zheng's random thoughts, Chen Bai hurriedly said, "I have reserved a special place for you, an exclusive place."

Pointing to the position next to the top podium, this is actually a teaching assistant position.

Well, now it is exclusive to Qi Zheng.

Then Chen Bai raised his voice a little, "Everyone, this is your first lesson in the multifunctional electronic classroom."

"Before the formal learning content of the class, what I want to teach you is how to listen to the class correctly."

A group of curious little radish heads: "..."

attend class?Wouldn't it be enough to wear an ear?

They can attend lectures, and even the husband can't find out that they are lazy.

Chen Bai smiled, and pointed to the upper right hand of the desktop, "Everyone's desktop has an embedded flat button, um, there is a mechanism, now... everyone lightly press it to turn it on."

Chicken?

what chicken?

"There really is a mechanism."

But the messy voice that just appeared disappeared immediately, because everyone's mouths were wide open, and they couldn't close them no matter what.

With the click of the button, the glazed slab inlaid on the table slowly rose.

Silent.

Mom, what is this?