满意答案
look at sth
1. to examine sth(closely) ---（彻底）检查
例句：My tooth aches.I think a dentist should look at it.
2. to think about or study sth----考虑，研究
例句：The government is looking at ways of reducing the rising of price.
3. to read sth ---读，阅读
例句：Could i look at the newspaper ?
4. to consider sth ---认为，看待
例句：Different nationalities look at life differently.
look up
1.to rasie your eyes---仰视，抬头望
例句：She looked up and smiled.
2.to improve---改善，好转
例句：Business is looking up.
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其他答案
look up，拜访，仰望
look at， 看
look up是查询的意思。比如look up in a dictionary查字典
look at是看的意思。比如look at that little dog看那只小狗
look up 向上看、查（字典）
look at 看，看待
look up
v.
向上看, 尊敬, 仰望, 查寻, 拜访, 好转
look at
v.
看, 考虑, 着眼于
look up :向上看, 尊敬, 仰望, 查寻, 拜访, 好转
look at :看, 考虑, 着眼于
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