need to do sth.与 need doing sth.有什么区别?

题目

need to do sth.与 need doing sth.有什么区别?
麻烦明白一点,我不太明确这个知识点

答案

need to do 一般主语是人 you need to wash your hands before you have lunch. need doing 一般主语是物 the chair needs repairing
求采纳