There are many kinds of books in our school library.为什么加OF?

问题描述:

There are many kinds of books in our school library.为什么加OF?

kind of- grammar rule
后面+名词

a kind of sth 或 many kinds of sth 是固定用法

kind后面+名词都要加of阿

kinds of 是固定短语.后面加名词

...kind of...是一个词组,表示什么样的种类
kind of在其他地方还可以翻译成有几分,一些