at the library和in the library有什么区别

用法不同。at the library和in the library的意思都可以翻译做在图书馆。若只把图书馆看作一个地点，则用 at；若强调在图书馆里面，则用 in。

library的基本意思是“图书馆,藏书室 ”,也可指某图书馆或某人的“藏书”,还可指“收藏的录音、唱片或影片等”。

library有时也可用在其他名词前作定语。

I turned to bookshops and libraries seeking information and found none.

我去了书店和图书馆查找资料，但什么也没找到。

It is difficult for a lay person to gain access to medical libraries.

非业内人士难以进入医学图书馆。

I believe the book is now out of print, but it can easily be borrowed fromlibraries.

我想这本书现在已经停印了，但从图书馆很容易借到。

Libraries are an investment for the future and they should not be allowed to fall into decline.

图书馆是对未来的一项投资，不应任其日趋萎缩。