When muscles perform an activity they aren't regularly exposed to, the tiny fibers that are inside them are being torn apart.

当肌肉进行一项其不常接触的活动时，肌肉内部的细小纤维就会被撕裂。

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Researchers at the Ecole Polytechnique Federale in Lausanne found that a tiny inhibitor -called NCoR1 -may be responsible for how strong and powerful our muscles are.

洛桑联邦理工学院的研究人员发现了一种名为NCoR1的微型抑制剂，可能会影响我们肌肉强度和力度。

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Here we have an animal that's one 90th or one 100th the size of T. Rex, but with all the signature features, the big head, the strong muscles and the tiny little arms.

这种动物体型只有霸王龙的九十分之一或百分之一大小，但却具有霸王龙其他所有的重要特征，硕大的头部、强健的肌肉还有短小的前肢。

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