"游泳的同学"用英语可以说成 "swimming classmates" 或者 "classmates who swim"。

"Swimming" 是英语中表示"游泳"的动词，它来自古英语中的 "swimman"，意思是"游动"或"浮动"。

例句：

My swimming classmates and I go to the pool every Saturday.
(我和我的游泳同学每周六都去游泳池。)
A few of my classmates who swim are on the school's swim team.
(我有几个会游泳的同学是学校的游泳队员。)