文件转换器手机版中文:(根据提示，写句）Which signs canwe see in the school library?2)What do these signs mean?3).

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(根据提示，写句）Which signs canwe see in the school library?2)What do these signs mean?3).Let's make some rules for the school library and explain.

No smoking
Be quiet

(根据提示，写句）Which signs canwe see in the school library?2)What do these signs mean?3). 根据提示写成语 根据提示写成语： 根据提示写成语： 根据提示写成语 根据提示写句子 根据提示写古诗 根据提示写成语 根据提示写话 根据提示写成语