cin4 gung1 zeon6 hei3前功盡棄前功尽弃
Jyutpingcin4 gung1 zeon6 hei3
Yalechình gūng jeunh hei
Definition
to waste all one's previous efforts (idiom)
Tone guide
T1High level
T2High rising
T3Mid level
T4Low falling
T5Low rising
T6Low level
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