collaborator
 合幹者,合作者,共同研究者


 col·lab·o·ra·tor n.
 1. An associate in labor, especially in literary or scientific labor.

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 collaborator
      n 1: someone who assists in a plot [syn: confederate, henchman,
            partner in crime]
      2: someone who collaborates with an enemy occupying force [syn:
          collaborationist, quisling]
      3: an associate who works with others toward a common goal;
         "partners in crime" [syn: cooperator, partner, pardner]