在比赛中你经常做屈腿动作，是不是和坐骨神经疼有关？
Q.The way you were sort of flexing your legs, is it sort of a sciatic nerve?
放下腿，屈腿跪在地上，脚挨着地，握住一只脚踝，一只大拇指按住跟腱。
To release them, sit with your knees bent and feet on the floor. Grasp one ankle, placing your thumb just above your Achilles tendon.
皮埃尔朝坑里望了一眼，看到工场伙计屈腿卧着，膝盖抵着头朝上蜷着。一边肩膀高一边肩膀低。
Pierre glanced into the pit and saw that the factory lad was lying there with his knees up close to his head, and one shoulder higher than the other.
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