breaststroke e蛙泳
breaststroke beginner恐水
breaststroke turn蛙泳转身
breaststroke zhonggangxia蛙式
breaststroke knee蛙泳膝
Breaststroke Training蛙泳训练
breaststroke skills蛙泳技术
the breaststroke蛙泳
N-UNCOUNT（不可数名词） Breaststroke is a swimming stroke that you do lying on your front, moving your arms and legs horizontally in a circular motion. 蛙泳 [also 'the' N]
I do not yet know how to swim breaststroke effectively.
我还不知道如何有效地进行蛙泳。