And that's why, then, the one at the bottom will break, and if I pull very slowly, the one at the top will break.
这就是为什么，底部这条会断裂，如果慢慢拉，顶部这个就会断。
As you slide the leg back slowly move your head forward as if it is being left behind the movement and then pull it back towards the body as you switch to the other foot.
当你的脚慢慢向后滑动时，稍稍把头向前移动，就好像头部的动作慢一拍一样。当你转到另一只脚时再把头伸回来。
As you slide the leg back slowly move your head forward as if it is being left behind the movement and then pull it back towards the body as you switch to the other foot.
当你的脚慢慢向后滑动时，稍稍把头向前移动，就好像头部的动作慢一拍一样。当你转到另一只脚时再把头伸回来。
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