◎ 跳到黃河也洗不清 tiào dào huáng hé yě xǐ bù qīng

1. [cannot clear oneself even by jumping into the Yellow River] 比喻蒙受的冤屈或誤解難以澄清。 跳到黃河也洗不清，這冤屈如何能明？——清·無名氏《京本通俗小說》