Backstroke Spin drill is one of the most FUN drills in swimming because it lets you do all the things you're not supposed to do, and lets you do them in a BIG way.
仰泳的转臂训练是一项非常有趣的游泳训练，用夸张的方法做你根本不会想到的事情。
Backstroke Spin drill is an intense, fun drill for swimmers of all ages.
仰泳的转臂训练是一项强烈并有趣的训练，适合所有年龄的游泳者。
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