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約束を破る, 約束をやぶる, やくそくをやぶる
1. to break a promise, to go back on one's word, to renege
违背承诺;食言;违约
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ならない
1. cannot help (feeling), unbearably, awfully, irresistibly
2. must not ..., should not ...
3. must ..., have to ..., ought to ...
4. cannot, unable to
5. not
tbd