Roles
n. 人物；角色；任务, 作用（role的复数形式）
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
I have no idea about it.
我一点都不知道。
And anyone who gave more than a passing thought to the bottom confines of the oceans probably assumed that the sea bed was flat.
凡是稍稍想过大海海底的人大概都会认为海底是平坦的。