释义：
don't need to 没有……的必要
need to+动词的否定形态 don't need to 表示“没有做某事的必要”，与 don't have to 具有相似的含义。表示对方“不必做某事”的 I don't need you too 也是比较常用的句式。
例句：
I don't need to know the details.
我不需要知道详情。
I told you that you don't need to be here.
我告诉过你，你不需要待在这。
I don't need you to help me. I can do it myself.
我不需要你帮我，我可以自己完成。
I don't need you fighting for us anymore.
我不需要你为我们打架。
对话：
A: I can help you finish your homework.
我可以帮你做作业。
B: You don't need to stay here with me.
你不需要和我一起待在这里。
