take a look at the list of the contents and you will get a __idea of what the book is about.A usual B common C general D normal选C为什么

问题描述:

take a look at the list of the contents and you will get a __idea of what the book is about.
A usual B common C general D normal
选C为什么

看一眼成分的清单,那样你就会大概知道这本书是关于什么的了
c是大概的意思

get a general idea
意思是有个大致了解
固定搭配啦~
没有为什么的,记住就好啦~