needn't sth与don't need sth有什么区别?

问题描述:

needn't sth与don't need sth有什么区别?

根本没有needn't sth 的用法!
needn't 是情态动词的用法,后面必须接动词原形,即 needn't do sth
而don't need sth 是存在的,这里need 是实意动词
希望我的回答能够帮到你,