The doctor is looking him over.为什么不能写成 The doctor is looking over him.如果不可以,那是为什pick it up try it on 中的up 和on 是介词的可以pick up it try on it
问题描述：
The doctor is looking him over.为什么不能写成 The doctor is looking over him.如果不可以,那是为什
pick it up try it on 中的up 和on 是介词的
可以pick up it try on it
答
因为 him 是代词！ 代词都要放在动词短语的中间
比如说： put it up take it off
答
因为over 是副词,代词不能放在副词后,所以放在中间.又如:
pick it up try it on 不能说pick up it ,try on it