A library is a place to study. Everyone needs a good reading environment. After all, it is a public place. If you want to play mobile phones, you can go to cafes, restaurants and other entertainment places. You don't have to go to the library. And if someone's original meaning is not very firm, they will be infected by your bad behavior when they see you playing mobile phone.

I hope to adopt. I've been playing for a long time . . . .