Climbing hills is of great help to our health.为什么用of?
问题描述：
Climbing hills is of great help to our health.为什么用of?
答
of +名词=adj 固定用法：of great help=very helpful那请问其他句子可不可以用这种句型？ 比如 She is of great beautiful？可以，但是你用错了：beautifu是adj，应该为beauty。例如： of great wealth=very wealthyof great importantce=very important