洗手不干　

◎ 洗手不干 xǐshǒu-bùgàn

[have none of wash one‘s hands of sth.;hang up one‘s axe;stop doing evil] 堅(jiān)決不再干了

他一旦發(fā)現(xiàn)這件事情是不誠實(shí)的,他就會(huì)洗手不干