It's adj for sb to do sth和It's adj of sb to do sth有什麽区别?

问题描述:

It's adj for sb to do sth和It's adj of sb to do sth有什麽区别?

前一个:做什么什么事对你如何如何
例:it's good for you to learn English,学英语对你有好处
后一个:做什么什么事说明你本来就如何如何
例:it's very nice of you to help me ,你真是太好了,能来帮我