The ski is thick enouge to skate.“skate”后面要加on吗?为什么?

问题描述:

The ski is thick enouge to skate.“skate”后面要加on吗?为什么?
那the problem is easy enouge to solve呢?

不用了,skate本身是可以当动词用的,滑冰的意思已经构成.Sth is adj.to do sth.