at the library 和in the library 有什么区别?什么时候用前者?什么时候用后者?

at the library和in the library有什么区别? in the library还是at the library? at the library 和in the library 有什么区别?什么时候用前者?什么时候用后者? at the library和in the library两种都可以用吗? 急,十万火急 at the library和in the library两种都可以用吗? 急,十万火急 at the library 跟in the library有区别吗? 翻译：Don't talk in the library! at the library at the mall at school at the pool 和 in the library .我知道有in school .in school =at school .有没有 in the mall 呢,in the pool 有in the library哦.究竟这几个怎么个回事啊.资料又都说全部用at .可是还有in in、on、at什么时候加the?比如为什么in the library,不是in library You can't talk in the library.改为祈使句 _______ in the library._______ talking in the library. Look at the map in the library哪错了 at the library与in the library-When do your classes end?-They end at noon.Then I have a job at the library.请问:这里的at the library可以换为in the library吗? Look at the library Don't talk in the library 同义句_____ ______ talk in the library We don't allow eating in the library同义句 You___ ____ ____eat in the library Don't smoke in the library .(改为同义句)______ ________in the library. You can’t talk in the library.(改为祈使句) ______ ___You can’t talk in the library.(改为祈使句) ______ _______ in the library. 把“We should't talk in the library.”改为祈使句