The girl Tingting stood up with a lazy look on her face, "Teacher, I don't understand this question."
"This classmate, what don't you understand?" The polite scum adjusted his glasses, "I'll tell you again."
"Teacher, I understand it from the beginning of class." The girl smiled, "I just don't know what the topic means."
The gentle scum twitched the corners of his mouth, "This classmate, please don't make such jokes. Please sit down. Let's continue talking."