Therefore, it is known as the bone collagen in the bones.

因此，有人称胶原蛋白为骨骼中的骨骼。

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Collagen is the main protein of sinew, cartilage, bone and skin.

胶原是腱、软骨、骨、皮肤的主要蛋白质。

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Collagen is the main protein of sinew, cartilage, bone and skin.

胶原是腱、软骨、骨、皮肤的主要蛋白质。

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