For backstroke, holding the arm out front doesn't really work.
对于仰泳，将手放前面并没有效果。
I am very good at swimming, for I can do butterfly stroke and backstroke.
而且，我认为我游泳还是不错的。而且能有的很好。我会蝶泳，仰泳。
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。
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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