[为非作歹 / 為非作歹, wéi fēi zuò dǎi, ㄨㄟˊ ㄈㄟ ㄗㄨㄛˋ ㄉㄞˇ]to break the law and commit crimes (成语 saw); malefactor; evil-doer; to perpetrate outrages#47262[Add to Longdo]
[助纣为虐 / 助紂為虐, zhù zhòu wéinu:è, ㄓㄨˋ ㄓㄡˋ ㄨㄟˊnu:ㄜˋ]helping tyrant Zhòu 紂|纣 in his oppression (成语 saw); to take the side of the evil-doer; giving succor to the enemy#60055[Add to Longdo]
[狼奔豕突, láng bēn shǐ tū, ㄌㄤˊ ㄅㄣ ㄕˇ ㄊㄨ]the wolf runs and the wild boar rushes (成语 saw); crowds of evil-doers mill around like wild beasts#147248[Add to Longdo]
[どぶねずみ;ドブネズミ, dobunezumi ; dobunezumi](n) (1) (uk) brown rat (Rattus norvegicus); common rat; Norway rat; (2) dark grey (colour, color); dark gray; (3) secret evil-doer[Add to Longdo]