The skeleton provides the shape and form for the body and, as such, it supports soft tissues and provides a point of attachment for many muscles.

骨骼为机体提供形状和形态，且它也支持软组织并为许多肌肉提供附着点。

Its function is to provide support and protection for the soft tissues and the organs of the body and to provide points of attachment for the muscles that move the body.

人体共有206块骨。许多长骨都有内部空间，那里充满了能产生血细胞的骨髓。

See how dense and opaque they are at the point of attachment, and how filmy and translucent toward the end, so that the peaks back of them are seen dimly, as though you were looking through ground glass.

看看它们在附着点处是多么的致密和不透明，到末端是多么的薄膜和半透明，以至于它们后面的峰顶隐约可见，就像你透过磨砂玻璃看一样。