他带着一本沉重的大部头书去图书馆还书。

He carried a heavy tome to the library to return it.

如果你在图书馆逾期还书，你需要支付罚金。

If you return a library book late, you have to pay a fine.

我必须在星期五之前还书。

I have to return the book by Friday.

千万不要相信他会按时还书.

Never credit him to return the book to you in time.

我如果还书晚了会怎样？

How long can I keep the books?

学生必须按期还书，否则就得为这本到期没还的书交罚款。

Students must return the book by the due time; otherwise they'll have to pay a fine for the overdue book.

图书馆的书盖了日期,按此日期还书.

The library book is stamped with the date by which it must be returned.

所谓还书架(book drop)是指，当图书馆关门时，还书者将书放在墙中的一个金属门中，这个金属门就是还书架。

A book drop is the small metal door in the wall of the building where people can return books when the library is closed.

您必须两周内还书.

You have to check in the book within two weeks.

请别忘了按期还书.

Please do not forget to return them by the due date.