This material is a little expensive,but is of much higher quality.这个of怎么解释呀,

题目

This material is a little expensive,but is of much higher quality.这个of怎么解释呀,
How many woud you like and of which color?还有这个呀 这两天被OF弄的很烦

答案

of+一个名词=此名词的形容词形式,比如of importance = important,你这个里面of much higher quality 就是高质量的意思,这么用是因为quality没有合适的形容词形式来表示“质量高”.这种用法一般比较正式.