/rəʊl ||; rol/noun[C] 1 the position or function of sb/sth in a particular situation 地位；作用；（扮演的）角色: Parents play a vital rolein their children's education. 父母在教育子女方面起着至关重要的作用。
2 a person's part in a play, film, etc （戏剧、电影等的）角色: She was chosen to play the role of Cleopatra. 她被选定演克娄巴特拉一角。a leading rolein the film 电影主角