| 单词 | cartilaginous skeleton |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔elasmobranch〕Any of numerous fishes of the class Chondrichthyes, characterized by a cartilaginous skeleton and placoid scales and including the sharks, rays, and skates.属软骨鱼纲的鱼：软骨鱼纲鱼的一种，以软骨骨架和板状鱼鳞为特征，包括鲨、鳐、灰鳐美国传统〔fish〕Any of the class Chondrichthyes, having a cartilaginous skeleton and including the sharks, rays, and skates.软骨鱼：有一套软骨架的软骨鱼纲中的一种，包括鲨鱼、魟鱼和鳐鱼美国传统〔ray〕Any of various marine fishes of the order Rajiformes or Batoidei, having cartilaginous skeletons, horizontally flattened bodies, and narrow tails.鳐；魟：鳐目或魟目中繁多的水生鱼类中的一种，骨软，身体扁平，尾窄美国传统 |
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