Sit on the floor with your legs straight out in front of you, toes pointed toward the ceiling.
坐在地板上，向前伸直腿，脚趾朝向天花板。
On each stroke, your goal is to get into a position with your legs straight and your arms out.
在每一个泳姿中，你的目标是进入一个腿直的位置，外划你的手臂。
One of the best ways to start training the quads to work in the straight-knee position is by sitting on the floor with your legs stretched out straight in front of you.
训练运用股四头肌来伸直腿的最好的方法之一是腿伸直坐在地板上。
One of the best ways to start training the quads to work in the straight-knee position is by sitting on the floor with your legs stretched out straight in front of you.
训练运用股四头肌来伸直腿的最好的方法之一是腿伸直坐在地板上。
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