机器能操作的是一楼和二楼的图书，而我所借的书全是三楼的。

The machine can operate is the first and second floors of books, and I borrowed the book are all on the third floor.

youdao

并确保孩子们在周五携带自己在图书馆所借的书，使他们能按时归还。

And make sure that the students have their library books this Friday so that they can return them.

youdao

并确保孩子们在周五携带自己在图书馆所借的书，使他们能按时归还。

And make sure that the students have their library books this Friday so that they can return them.

youdao