助桀为虐 [- jié wéi nüè]helping the tyrant Jie to oppress — evildoers help one another; abet an ill-doer; encourage oppression; help evil; give support to a tyrant; help hold a candle to the devil; help sb. in his evil deeds; help the evildoer to make trouble [to do evil]:
•¶ 这个国家在非洲的行动无异于助桀为虐。 What this country is doing in Africa is as much as holding a light to the devil.