第1个回答 2011-08-17
我们必须在图书馆里保持安静
We must keep silence in the library.本回答被网友采纳
第2个回答 2011-08-17
We must keep quiet in a library.希望能帮到你。
第3个回答 2011-08-17
We must keep quiet in the library.
第4个回答 2011-08-17
we should be quiet in the library
第5个回答 2011-08-17
We must keep quiet in the library.