don't need to等于什么

don't need to等于什么 don't need to needn't 和 don't need to 有什么不同? YOU don't need to ``````` you don't need to don't need to understand don't have to等于什么 don't have to do sth 是否等于don't need to do sth 和needn't do st don't need to 和needn't need to do sth,need do sth.needn`t do sth和don`t need有什么不同! needn't和don't need to有什么区别?haven't和 don't have 有 you don't need to be