他的全身都动起来，想要试着抬起右腿。
吸气，向上向前抬起右腿。
他不得不躺在地上，轮流抬起左腿和右腿。
He had to lie on the ground and raise his right and left legs in turn.
将右腿向后收起，并用右手将足抬起，并控制在身后。
1Take your right leg up behind you, lifting the foot and taking hold of it with your right hand.
再向上抬起左腿，尽量使其靠近右腿。
Lift your left leg off the floor and bring it up toward your right leg.
再向上抬起左腿，尽量使其靠近右腿。
Lift your left leg off the floor and bring it up toward your right leg.
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