perpetrator

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++per·pe·tra·tor /ˈpɜːpətreɪtə $ ˈpɜːrpətreɪtər/ noun [countable] formal  someone who does something morally wrong or illegal 作恶者；犯罪者 → culprit The perpetrators were never caught. 作案者始终逍遥法外。perpetrator of The perpetrators of racially motivated violence must be punished. 种族主义暴徒必须受到惩罚。

Examples from the Corpus

perpetrator• We know about black people as victims, but not about white people as perpetrators of crimes against black people.• Already the police were pulling imagined perpetrators from among them.• They are the perpetrators of futility.• Whatever may have happened, it was treated as an act of war and in these circumstances the perpetrators forfeited all rights.• She knew what had happened but she had completely forgotten the details - including the description of the perpetrator.• A deed planned in cold blood may appear very different to the perpetrator if he ever gets round to carrying it out.• In 33 % of cases schoolteachers were the rapists, and in 25 % of cases relatives were the perpetrators.• The perpetrators of the coup would be imprisoned by the storm for the next twenty-four hours.perpetrator of• the perpetrator of a sex crime

per·pe·tra·tor nounChineseSyllable  

who does something Corpus wrong or morally someone

perpetrator
per‧pe‧tra‧tor /ˈpɜːpətreɪtə, ˈpɜːpɪtreɪtə $ ˈpɜːrpətreɪtər/ noun [countable] formal
someone who does something morally wrong or illegal ⇨ culprit:
    The perpetrators were never caught.
    perpetrator of
    The perpetrators of racially motivated violence must be punished.

per·pet·ra·torBrE /ˈpɜːpətreɪtə(r)/ 🔊NAmE /ˈpɜːrpətreɪtər/ 🔊 (also NAmE, informal perp) nouna person who commits a crime or does sth that is wrong or evil 作恶者；行凶者；犯罪者◆the perpetrators of the crime该项罪行的犯案者