must not 和need not 谁的力度大?
问题描述：
must not 和need not 谁的力度大?
请细致点,
答
must not禁止,不能
need not 不许,没必要
所以禁止力度大
例：他没必要吃那么多肉
He did not need to eat so much meat
他不能再吃肉了.
He must not eat meat any more