誓不反悔

shì bù fǎn huǐ

Meaning

to vow not to break one's promise

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Characters

誓shìto swear, to pledge; oath折言不bùno, not, un-; negative prefix一反fǎnreverse, opposite; contrary, anti-厂又悔huǐto regret, to repent, to show remorse忄每