| [/rəul; rol/] n 用法:
1 actor's part in a play 角色:
play a variety of roles 扮演各种的角色 *
the title-role 主角. 用法:
2 function or importance of sb/sth 作用; 重要性:
the key role of the teacher in the learning process 教师在教学中的关键作用 *
the declining role of the railways in the transport system 在运输系统中, 铁路的重要性逐渐下降. |