"with the aid of"和"in aid of"用法有什么区别?

题目

"with the aid of"和"in aid of"用法有什么区别?
怎么用?是固定词组吗?为何一个有冠词,一个没有呢?..

答案

均为固定词组.with the aid of ：借助于,通过…的帮助； 在……的帮助下例：1.The magician often conjures with the aid of his wife.这个魔术师经常在她太太的协助下变戏法2.observe the moon with the aid of a t...