你好，这个是可以的。比如下面几个例子；
1,Do not speak loudly in the library.
2.Food and drinks are strictly not allowed in the library.
3.Do not tear the pages of the books or magazines.
4.Please return the fines for overdued books.
5.Use your own card to borrow books.
这都是规则。希望我的回答能够对你有所帮助，望采纳哦，谢谢！
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