Dictionary/前功尽弃

前功尽弃前功盡棄

qián gōng jìn qì

ㄑㄧㄢˊ ㄍㄨㄥㄐㄧㄣˋ ㄑㄧˋ

Idiom

1to waste all one's previous efforts (idiom)

2all that has been achieved goes down the drain

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