Then try a few single-arm strokes with each arm, building into full stroke swimming.
然后试着做些单臂与另一个手臂的交替练习，建设成为全程游泳的练习。
youdao
To improve your tennis strokes you try using a different grip.
为了提高你网球的击球法，你试试用另一种握拍方法。
应用推荐
模块上移
模块下移
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