Try not to bend your knees too much, but allow the legs to flow.
尽量不要弯曲你的膝部太多，但允许腿的流动。
Hold for 20 seconds. Be careful. Paint cover and elbow can not bend, straight to stop! Try to focus backwards (toes will be forced to do)! Try to focus backwards (toes will be forced to do)! Do 2.
双脚并拢，双手摸地。坚持20秒。注意！漆盖和手肘不能弯，要停直！尽量将重心向后移（脚指头会用力就做对了）！做2个。
Try not to over-bend the tubes, it will be almost impossible to un-bend.
试不到在上弯管管，它将会几乎是不可能的到不弯管的。
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