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v&R3|]Mu%Kp&8。

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OdH+g)za_w。

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L3Fm#X7zrA+@YQ+TIA=。

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喜欢你的书bW(M)khrDiW。