look up啥意思,咋用,举例,

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查（字典/资料）
if you get any problem,please look it up in this manual
look up to 尊敬
all members of the union look up to their pesident
======以下答案可供参考======
供参考答案1:
look up 1. 向上看，抬头看； she looked up at me and said nothing;
2. look up sth in the dictionary. 查字典
please look up this word in the dictionary.