This drill helps seimmers focus on stroking correctly while ring jrst one arm at a time.

这一练习有助于运动员集中注意力于一臂的划水动作上。

youdao

This drill helps seimmers focus on stroking correctly while ring jrst one arm at a time.

这一练习有助于运动员集中注意力于一臂的划水动作上。

youdao