Secondly, even if the person who occupies the seat comes, it is impossible to occupy the seat for a while. But at least one hour late, even in the afternoon. This will also harm the interests of other students. Therefore, I think the library should not be occupied. First come, first served. Come early when you want to read. Of course, occupying a seat is very good for the person who occupies it. He is afraid of losing his seat after walking for a while. Someone is staying. In fact, you see a space in the library, where you just sit and make room for people when they come. However, occupying a seat is inevitable, just like taking a seat in the postgraduate entrance examination.