"Mm-hmm!" the ethics teacher on the podium coughed a few times, "Some students have been whispering below. If you also want to participate in the debate, I can invite you up next time. For now, please stay quiet and listen to what others are saying. When it's your turn to come up, you won't be allowed to skip."
As she spoke, her gaze returned to Tan Rou and Zhuang Liu and she also made a "silence" gesture, meaning they shouldn't talk anymore.
Tan Rou and Zhuang Liu consciously closed their mouths. The female teacher was more tolerant, agreeing to let them film here; if it had been one of those rigid old professors, they probably would have been sent out already.
Not being able to talk didn't bother Zhuang Liu, in fact, he felt that their earlier behavior was somewhat inappropriate. This was a classroom, and apart from the discussion times, they were supposed to remain quiet. They hadn't done that just now, but now they had to follow the classroom rules properly.
