现在我要集中于主要的四肢和他们的关系到躯干。
Right now I want to concentrate on the main limbs and their relationships to the torso.
四肢的肌肉只是把骨头安排在这样的一个特定关系里以便正好传送移动身体的动力。
The muscles of the limbs only place the bones in such a relationship as to transmit the power moving the body.
然而，他们确实发现跑步者四肢的端粒长度与完成的跑量成反比关系。
However, they did find that telomere length in the runners' quads was inversely related to the amount of running they had done.
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