As follows: 1. You need to ask for leave when you are sick.

2. Take time off for all kinds of exams.

3. You can ask for leave after your family dies.

4. Lost bank card ID card needs to be reissued.

There are many others, so I won't list them one by one. Actually, it's easy to ask for leave in college. Basically, you submit the application and the counselor gives it to you, because college students are adults and can be responsible for their own lives. Counselors and schools don't have to take care of you like primary school students. Many times, you don't really ask for leave because of something. For example, if you want to sleep in the dormitory for a while, you can ask for sick leave. These teachers all know, it depends on whether they care about you sometimes, so I think universities should study hard, so it is worth their own efforts.