I'm going to call on one of my former classmates.

我要去看望我的一位老同学。

《新英汉大辞典》

youdao

I just received an email from one of my former classmates.

我刚收到一个老同学的电子邮件。

youdao

In Paris, Isabella became close friends with one of her classmates, Julia Gardner, whose family was from Boston, Massachusetts.

VOA: special.2009.01.11

So I thought I'd begin with a short note that one of your classmates sent to me earlier this week.

我从这周早些时候,你们其中一个同学给我的一张字条开始。

哈佛公开课 - 计算机科学课程节选

Let's say that one of your classmates puts make up on all the time.

假设你有一个同学总是带妆出门。

remind me of 课堂 - SpeakingMax英语口语达人

She did a great job, great job. (Applause.) Just know that we're all very proud of you, and we're all very proud of every single one of your classmates and every single student here in the city of Philadelphia and the state of Pennsylvania.

WHITEHOUSE: Making Healthy Food Accessible & Affordable

One student said she learned one of her classmates was stabbed after leaving the school's Health Science Center building.

NPR: Student Arrested In Texas College Stabbing Attack

It all hit home one weekend this spring when I took Neva to a birthday party for one of her classmates.

WSJ: Being a Murphy Brown Working Mom in a June Cleaver Stay-at-Home World