要伸展的那条腿应该放在躯干的后面并弯曲膝盖。
The leg to be stretched should be positioned behind your trunk with your knee bent.
这也就是说你的脖子和脊柱应该处于中正的位置，肩膀和躯干放松，膝盖弯曲呈90度角，双脚平放在地面上。
This means your neck and spine should be in a neutral position, shoulders and torso relaxed, knees bent at 90 degrees with both feet flat on the floor.
因为力量源自地面，弯曲你的膝盖能让你的身体处于一个更易通过躯干，髋和肩部转动获得能量的绝佳位置。
Because force is generated with help from the ground, bending your knees places your body in better position to produce trunk, hip, and shoulder rotation.
大臂上的二头肌使手肘弯曲，拉向躯干的方向，辅助伸展动作。
The biceps of the both upper arms bend the elbows, drawing the torso into the stretch.
你的头和躯干应在符合你的头略向前弯曲，面对前进、均衡。
Your head and torso should be in-line with your head slightly bent forward, facing forward, and balanced.
起来时，先从大腿处提起躯干并伸展肘部（如果它们是弯曲的）。
To come up, first lift the torso away from the thighs and straighten the elbows again if they are bent.
弯曲抬起头部及上部躯干。
这个最新的迭代更加灵活，在经历来自20个自由度的31个(包括球形关节在躯干和颈部让它弯曲和扭转风度)。
This latest iteration is much more agile, having gone from 20 degrees of freedom to 31 (including spherical joints at the torso and neck to let it bend and twist with grace).
我们都可以模仿Becker的动作，只是可能动作不会做如此大，因为没有人在扔球或是挥拍的时候不弯曲躯干，但可以肯定的是，并不是所有人都可以很好的控制它。
We can all imitate Becker's motion to some small degree without prompting because no one throws a ball or swings a bat without flexing the torso, but we all can't control it, that's for sure.
我们都可以模仿Becker的动作，只是可能动作不会做如此大，因为没有人在扔球或是挥拍的时候不弯曲躯干，但可以肯定的是，并不是所有人都可以很好的控制它。
We can all imitate Becker's motion to some small degree without prompting because no one throws a ball or swings a bat without flexing the torso, but we all can't control it, that's for sure.
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