一劳永逸 yīláoyǒngyì once and for all Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 我们需要一个一劳永逸的解决方法。 wǒmen xūyào yīgè yīláoyǒngyì de jiějuéfāngfǎ. We need a once-and-for-all solution. Source: Dong Chinese Dictionary