henchman
noun (usually disapproving)a helper or supporter of a powerful person, for example a political leader or criminal, who is prepared to use violence or become involved in illegal activities to help that person （政治领袖人物或罪犯等的）忠实支持者，亲信，心腹，追随者 his ruthless henchmen 他无情的党羽 He sent one of his henchmen with orders to seize the pictures. 他派了一个心腹执行命令，去抢照片。 Then he became aware of Carter’s two henchmen on either side of him. 然后他意识到卡特的两个亲信在他的两边。
Word OriginMiddle English, from Old English hengest ‘male horse’ + man, the original sense being probably ‘groom’. In the mid 19th cent. the sense ‘principal attendant of a Highland chief’ was popularized by Sir Walter Scott, and from here comes the current (originally US) usage.