look at/look for/look up/look after的区别?
问题描述：
look at/look for/look up/look after的区别?
答
look at看look for寻找look up查（字典） ,抬头看look after照顾如Please look at the blackboard.He is looking for his books.If you don't know the words , you can look them up in the dictionary.He can look...