Gu Ran didn't wait at the door; as soon as it opened, he immediately returned to his seat.
"When we were editing this book, we also considered changing 'pervert' to 'abnormal,' since 'pervert' is somewhat derogatory, and sometimes we say someone is perverted."
The two girls sitting beside him immediately pretended as if they had been there all along, attentively listening to the class.
About five or six minutes passed.
"I have a question for you all," the teacher said, "the psychological disorder continues to worsen, and over time, it may become a mental illness—do you agree or disagree with this statement, those who agree, please raise your hand."
The teacher glanced at the classroom and said, "Not too many."
"Then, do the rest of you disagree? Those who disagree, please raise your hand. Hmm... it looks like there are a few students who are not sure, neither agreeing nor disagreeing—can one of you speak up? You, please."