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下面是与look有关的11个短语动词，你认识几个？
look sth up：查阅，检索；（在计算机中）搜索
If you don't know what the word means, look it up in a dictionary.
look ahead：朝前看，展望未来，作长远打算
We are trying to look ahead and see what our options are.
look back：回忆，追忆，回想
When I look back, I can see where we went wrong.
look for sth：寻找
He is looking for his lost keys.
look forward to sth：盼望，期盼
She was looking forward to seeing the grandchildren again.
look in：（通常指顺便）拜访，看看
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