1. go over sth. 复习；重温
An aunt went up him and started to
go over Chinese history with him.
一位阿姨开始走向他并对他讲述了中国的历史。
2. on someone's behalf 以某人的名义
My husband can't be here today, so I'm going to speak
on his behalf.
我丈夫今天无法到场，就由我代他说两句。
3. a host of 一大群；许多
I believe that this view is mistaken and that it leads to
a host of entirely unnecessary difficulties.
我相信这种看法是错误的，还会导致一大堆完全不必要的困难。
4. feel compelled to 觉得必须……
I
feel compelled to write and tell you how much I enjoyed your book.
我觉得必须写信告诉你我有多
