题目内容：

同意表达we must keep quiet in the library

优质解答

有什么别的要求吗?
We must keep quiet in the library
我们在图书馆必须保持安静
同义句:
We must not make sounds in the library.
We should stay silent in the library.
We must not disturb others in the library.
都可以.
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答案来自于英语牛人团.