/ˈdiːmən/ N-COUNT A demon is an evil spirit. 魔鬼 …a woman possessed by demons. N-COUNT If you approve of someone because they are very skilled at what they do or because they do it energetically, you can say that they do it like a demon. 精力过人的人; 技艺出众的人 She worked like a demon and expected everybody else to do the same. 她工作起来精力过人，而且希望每个人都这么做。 He is a demon organizer. 他是一位高超的组织者。