n.（動(dòng)物）內(nèi)骨骼

Chordates are characterized by an endoskeleton. 脊索動(dòng)物有特征性的內(nèi)骨骼。

Bones are rigid organs that form part of the endoskeleton of vertebrates. 骨為堅(jiān)硬的器官，為脊椎動(dòng)物內(nèi)骨骼的一部分。

Cut to: the silhouette of a terminator endoskeleton holding a gun, it's eyes glow red against the darkness. 鏡頭切換：終結(jié)者骨架的側(cè)面，拿著一把槍，它的眼睛對(duì)著黑暗發(fā)出紅光。

Memorize: primary segmentation, secondary segmentation, endoskeleton, appendage, tentorium, phragma, vein, venation. 識(shí)記：初生分節(jié)、后生分節(jié)、內(nèi)骨骼、附肢、幕骨、懸骨、翅脈、脈序。

9.Chordates are characterized by an endoskeleton. 脊索動(dòng)物有特征性的內(nèi)骨骼。

endoskeleton Bony or cartilaginous framework of the body; excludes scales. 內(nèi)骨骼身體的硬骨或軟骨架構(gòu)；不包括鱗片。