同窗的英文：
schoolfellow
schoolmate

Students who too obviously play up to their teachers are usually disliked by their classmates.
过分明显向老师献殷勤的学生通常为其同窗所憎恶。

" And they were on such intimate terms, it was no wonder that their schoolmates suspected the worst. "
"因此二人更加亲厚,也怨不得那起同窗人起了疑"

She bore up with her schoolmates.
她与她的同学们并驾齐驱。

I recognise my primiary schoolmate Mary in the photo.
我从照片上认出了我小学时的同学玛丽。

He was often ridiculed by his schoolmates because he wore thick spectacles.
他因戴了深度眼镜常受到同学们的戏弄。

Through the open window I saw my schoolmates already in their places.
从开着的窗子望进去，我看见同学们都已在座位上坐好了。

The teacher advised me not to hash up old bitterness against her schoolmates.
老师劝我不要重提同学们的旧怨。