The book made ——this kind of paper is not popular为什么填of不填from呢?
问题描述：
The book made ——this kind of paper is not popular为什么填of不填from呢?
答
be made of 可以看出原材料 be made from 经过化学变化（看不出原料.The fence was made of posts joined together with wire.篱笆是以铁丝连接起木桩而构成的..These pancakes are made from batter.这些薄煎饼是用...