题目内容：

谁能解释新目标英语七年级She is of medium build中of的用法

优质解答

of + 名词,表示修饰,意义和这个名次对应的形容词相同~
譬如 It is of (great) importance for us.
对于我们来说那很重要,也可以这样说,
It's great important for us.