Professor, do you want an inhibitor?

The windows of the classroom were open, and a gust of wind blew over, shaking the textbooks and falling a few sheets of paper.

Fu Qingshu supported the podium with one hand, stretched out his hand and dialed the position of the microphone slightly, and said, "Hi everyone, my name is Fu Qingshu. Teacher Song is sick and asked for leave to recuperate. I will take over your work for the next half semester." Genetics course..."

His voice was very soft, and when it came out from the speakers on the wall of the classroom, it was like a gust of wind that was suddenly warm and then cold, scratching the surface of the lake that still had broken ice.