Put the books back on the shelf after reading, or Dad will be unhappy.

读完之后把书放回书架上，否则爸爸会不高兴的。

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When she got the books back they were a mess.

当归还时，她发现这些书被弄得一团糟。

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And another thing: They need their books back.

另一件事：他们需要书被还回来。

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It's really easy to go back to my room between classes and get my books,

两堂课之间回寝室拿书也十分方便。

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"The law was put on the books back in the '70s when we were using the copper-wire telephone, " he said.

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Second, the big black machine works like a jukebox with space to store 300 discs, so you can put your books back where they belong.

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He brought the idea of selling CDs and band-themed T-shirts, programs and books back home--along with his huge collection of CDs by bands such as Anthrax, the Dead Kennedys and the Melvins.

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