Where did you hear this irresponsible assertion? This sentence itself is one-sided. There are good teachers and bad teachers on both sides, because one teacher denies everything because of his bad reputation. . . Then, the teachers in other schools are also very poor, hehe

I am a graduate student in the Department of Mechanical Engineering of Dongda University. At least the teachers in our group are very good. If you come to graduate school, you can ask me, tell you those who have a bad reputation, and just go around.