请问这句话中为什么用的是two types of word,而不是two types of words啊?

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/05/29 07:07:24

请问这句话中为什么用的是two types of word,而不是two types of words啊?
E-mail English mostly uses two types of word.The first is "abbreviation".
The second kind of word is a “ homophone”
这是人教版新目标九年级12单元上的三句话.

E-mail English总是运用两种形式来表示,第一种是缩写字,第二种是同音词.
这种地方要灵活的理解,而且前面的two已经说明了几种,所以type加s就可以了,后面的word强调的只是其中的一个,不能加s.英语的单复数与中文不一样.系统的这种用法的还有很多.你应该要活学活用,什么集合名词有的也不加s.
加油.

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