go back on one's word;break one's promise;break one's word;renege;renegue ;

I've known him all his life, and he'd rather die than break his word.
我知道他的一生, 他是宁死也不肯食言的.
来源:词典精选例句After promising to keep the book for me, he broke his word and sold it to someone else.
他答应把书留给我之后, 却食言而把它卖给了别人.
来源:《现代汉英综合大词典》He welched on his agreement with the club that he would play for them in February.
他本答应二月份替俱乐部打球,但他食言了。
来源:《柯林斯高阶英汉双解学习词典》Wells was supposed to put up half the money, but later backed out.
韦尔斯本应当出一半的钱,但后来他食言了。
来源:《柯林斯高阶英汉双解学习词典》No one wishes to deal with a person who is accustomed to breaking his word.
谁也不愿意与惯于食言的人打交道.
来源:《简明英汉词典》
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