wrong·do·er /ˈrɔŋˌduɚ/
  做壞事的人
  Wrong·do·er n.
  1. One who injures another, or who does wrong.
  2. Law One who commits a tort or trespass; a trespasser; a tort feasor.
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  wrongdoer
       n : a person who transgresses moral or civil law [syn: offender]