情态动词must与need可能互换吗?新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来:1,you needn't (或mustn't) be so rude about it2,We mustn't (或needn't) buy things we don't need.3,You needn't (或mustn

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情态动词must与need可能互换吗?新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来:1,youneedn''t(或mustn''t)besorudeaboutit2,Wem

情态动词must与need可能互换吗?新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来:1,you needn't (或mustn't) be so rude about it2,We mustn't (或needn't) buy things we don't need.3,You needn't (或mustn
情态动词must与need可能互换吗?
新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来:
1,you needn't (或mustn't) be so rude about it
2,We mustn't (或needn't) buy things we don't need.
3,You needn't (或mustn't) have said that.
4.I needn't(或mustn't) remind you of that terrible tie you bought yesterday

情态动词must与need可能互换吗?新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来:1,you needn't (或mustn't) be so rude about it2,We mustn't (或needn't) buy things we don't need.3,You needn't (或mustn
哦 一般是不能互换的 must 表必须 多指现在或将来的情况 强调说话者的主观语气,其否定形式 mast'n表禁止 而need只有在做情态动词时意为“必须”常见于否定句 疑问句或if或whether之后 肯定句只用于含only,