一不做,二不休 [ㄧ ㄅㄨˋ ㄗㄨㄛˋ , ㄦˋ ㄅㄨˋ ㄒㄧㄡ; yi1 bu4 zuo4 , er4 bu4 xiu1] don't do it, or don't rest (idiom); either give up, or go through to the end Since we started, we must carry it through whatever happens. in for a penny, in for a pound ◄ ►