题目内容：

when they finished,the boy became the youngest swimmer to ever make the
to make the swim 做什么成分

优质解答

to make the swim
是
to make the swimming event 的简写,
意思是
尝试该游泳项目/比赛/运动 等等
句子是说
当他们做完了,这位少年成为有史以来尝试该游泳项目的最年轻的人.