工友的英文：
charman

He represented his fellow-workers at the union meeting.
他代表工友们出席工会会议。

Fiction: I can hold my breath long enough to rescue a downed co-worker.
虚构：我能够屏住呼吸足够长的时间来营救倒下的工友。

His success excites admiration in his workmates.
他的成功激起工友们对他的钦佩。

Doesn't the janitor usually do that?
不是通常由工友来打扫的吗?

The manager called the office boy into his room and dressed him down for his insolence to senior members of the staff
经理把工友叫进房间，斥责他对高级职员傲慢的态度。