这种长长的骨骼结构表明它是水生动物。

That long skeletal structure suggests that it was aquatic.

youdao

当然，在早期的建筑中——如冰屋和土坯结构——没有这样的设备，骨骼和皮肤通常是一体的。

Of course in early architecture—such as igloos and adobe structures—there was no such equipment, and the skeleton and skin were often one.

youdao

各种骨骼的形状和结构也必须加以调整，以使肌肉在直立行走时能够执行这些功能。

The shape and configuration of various bones must likewise be modified to allow the muscles to perform these functions in upright walking.

youdao