the internal skeleton; bony and cartilaginous structure (especially of vertebrates)
endoskeleton详细解释
en.do.skel.e.ton n.（名词）An internal supporting skeleton, derived from the mesoderm, that is characteristic of vertebrates and certain invertebrates.骨骼：体内支撑的骨骼，由中胚层而来的，是脊椎动物及某些无脊椎动物所特有的特性 【引伸】 en.doskel.etal
