n.作用；地位；角色； 变形： 复数：roles 双语释义：n.(名词)[C]作用,职责 function or importance of sb/sth; the duty or purpose of a person or group in a particular activity or area of life[C]角色 the part or character taken by an actor in a play, film, etc.英英释义： role[ rəul ]n.the acti