The train will leave at half past six, so I __must__ get there fifteen minutes earlier.
火車六點(diǎn)半開出,所以我必須提前十五分鐘到.這里必須要用must,是一定要的意思
希望可以幫到你哦O(∩_∩)O哈!有不會(huì)的再問我可用have to 嗎？至于這句話，have to也不是不可以，但是must更好其實(shí)這里跟你區(qū)分一下must和have to，二者都是必須的意思must表示主觀，have to表示客觀。We must help each other. 強(qiáng)調(diào)我們從心里感覺愿意互相幫忙My sister is ill, my mother has to look after her. 由于責(zé)任、客觀條件要求，而不得不做的事情這個(gè)鏈接的比較全，你可以參考下You don't ____ worry about her .She is much better now.請?jiān)敿?xì)解答.You don't _have to___ worry about her .She is much better now.請?jiān)敿?xì)解答.這里只能用have to，兩點(diǎn)原因1.語法上，must 是情態(tài)動(dòng)詞，否定式在后面直接加not，應(yīng)該是mustn't，而不是don’t must2.意思上，mustn't是禁止，條律、規(guī)定而不能做。顯然不合語意。don't have to翻譯成你不必，這句里面她身體已經(jīng)好多了，所以沒有必要擔(dān)心