The skeletal system includes both bones and cartilage.

骨骼系统包括骨骼和软骨。

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There are two principal effects of aging on the skeletal system.

有两个主要的老化作用的骨骼系统。

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Metastases of bone is the most common disease in the skeletal system.

骨转移癌是骨骼系统中最常见的肿瘤。

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The need for stronger drugs was because transplanted organs relating to the skeletal system were more likely to be rejected than others.

BBC: Transplanting the male organ

And osteopathic medicine has a certain disreputable tinge going back a century when osteopaths believed all disease sprang from the spine or the skeletal system.

FORBES: An Uncommon Practice