Although almost everyone in Tsinghua is a top scholar, as long as they are in school, there will be competition. Where there is competition, there is ranking. With the first place, there will naturally be the last place. Often called scum. There are many reasons to become scum. Briefly list two points:

1, give yourself freedom after entering the university. Influenced by the high school teacher's saying that it is easy to get into college, I think I can study hard, skip classes and sleep and play games all night after I get into college. Naturally, I failed the final exam.

2. As we all know, some students from poor areas find that their classmates are better than themselves in all aspects after entering the university, and they are all-round developed. After a long time, you will feel inferior and then start to be tired of learning.

Finally, Tsinghua's "scum" is naturally different from ordinary scum. Even if the ranking is not high, with the blessing of graduation certificate, you will get more opportunities than ordinary people.