more carefully和more careful有什么区别?还有more successful 和more successfully举个例子

问题描述:

more carefully和more careful有什么区别?
还有more successful 和more successfully
举个例子

都是比较级,但前一个是形容词(修饰名词),后一个是副词(修饰动词).
He is more careful.
He play more carefully.