1--I really need a book, but I didn't see it on the shelf.

2--According to the computer, it's not checked out yet.

1--Then why isn't it on the proper shelf?

2--It means that someone in this library is holding it right now.

1--So someone else has the book and plans on checking it out?

2--Either that or someone took it out of the shelf and misplaced it.

1--I really need that book.

2--You're going to have to look everywhere for it.

1--Can't you just make an announcement asking whoever has the book to come forward?

2--You are not that special. When it comes to books, it's first come, first serve.

1-- But I need it for school.

2--I'm sorry, but I can't do anything for you.

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注解：  

1.shelf架子
2.According to根据
3.announcement公告

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译文：

1--我真的需要一本书,但是我没有看到它在货架上。
2--根据电脑记录，它还没有被借出。
1--那它为什么不在架子上?
2--这意味着有人正在这个图书馆拿着它。
1--所以是有别的人有这本书并有计划借走这本书？
2--要么是那样。要么就是有人从书架上拿走但放错了地方。
1--我真的很需要这本书。
2--你要到处去找找它。
1--难道你就不能宣布出来让持有这本书的人拿过来吗?
2--当涉及到书,没人有特权，先到先得。
1--但我上学需要用它。
2--对不起，我不能为你做什么。