schoolfellow同学，校友
schoolmate同窗，同学
stable-companion 同学（比喻）
classmate同班同学
1、即使多年没有看见我的同学，我也马上认出了他。
Even though I hadn't seen my classmate for many years, I recognized him immediately.
2、我在旅行期间舆同学们保持联系。
I kept in touch with my classmates during my journey.
3、他胜过他班中的同学。
He got the better of his classmates.
4、他喜欢拿他的同学开玩笑。
He likes playing jokes on his classmates.
5、由于父母的离异，他遭到了同班同学的歧视。
The classmates discriminated against him because of his parents' divorce.
6、他哥哥是我的同学。
His brother is my classmate.
7、我的同学借了我的橡皮忘了还。
My classmate borrowed my rubber and forgot to return it.
8、这个男孩和新同学在一起感到不自在。
The boy felt uncomfortable with his new classmates.