616. Are these the books you’re checking out?
这些是你要借的书吗？
617. When are they due back?
要什么时候还？
618. It seems you still have a book overdue.
看来你还有一本书过期了。
619. You can have them for one month.
你可以借一个月。
620. It’s $0.5 a day for overdue books.
过期的书要收50美分一天。
621. Do you have any books on Russia?
你们有关于俄国方面的书吗？
622. You’re not supposed to talk in the library.
在图书馆你不许说话。
623. Is the photocopier working?
复印机在用吗？
624. That book is on reserve for a professor.
那本书被一位教授预定了。
625. We only have one copy of that book.
那本书我们只有一本。
626. She is a very popular author.
她是个很受欢迎的作者。
627. This library needs to get some more up-to-date books.
图书馆需要多一些最新的书。
628. Where are the math books located?
数学书在哪？
629. What time does the library close today?
图书馆今天什么时候关门？
630. I hate when people write in library books.
我讨厌别人在图书馆的书上写字。

【生词解读】
1. overdue [] adj. 过期的
2. Russia [] n. (1917年以前的)俄罗斯帝国；俄罗斯
3. photocopier [] n. 影印机；复印机
4. reserve [] n. 预约；预订