作业帮Don't l___ at that old man.It's not polite.
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Don't l___ at that old man.It's not polite.
Don't l___ at that old man.It's not polite.
Don't l___ at that old man.It's not polite.
laugh （at） 嘲笑
laugh
look
Don't laugh at that old man.It's not polite.
不要嘲笑那个老头，这是不礼貌的。