workmate

He has kept up with a number of his old workmates since his retirement.

他退休以一直和许多老同事保持着联系。

His workmates made a collection for his leaving party.

他的同事为他的会募捐。

The people we work with are called workmates and our friends at school are called classmates.

和我们一起工作的人叫同事；在学校里的朋友叫同学。

You can choose your job, your company, but you can’t choose your workmate, so working with nice people is lucky.

你可以选择自己的工作和公司，但不能选择自己的同事，所以和好相处的人一起工作是幸运的事情。