Their cartilaginous skeletons are less dense than bony ones and require less energy to move.
这些生理特质从4亿多年中进化而来它们软骨质的骨架比硬骨的骨架更轻。
单词 | cartilaginous skeleton |
例句 |
原声例句
TED-Ed(视频版) Their cartilaginous skeletons are less dense than bony ones and require less energy to move. 这些生理特质从4亿多年中进化而来它们软骨质的骨架比硬骨的骨架更轻。 6 Minute English 六分钟英语 If we look at the really successful features of sharks you've got to consider this cartilaginous skeleton – that's no bone in the skeleton. 如果我们研究鲨鱼真正成功的特征,你必须要考虑到软骨骨架——那是指骨架中没有骨头。 双语版 TED-Ed 演讲精选 Once contracted, they compress the arms of the cartilaginous skeleton at the base of the salamander's tongue, which then launches out with the rest of its tongue tissues. 一旦收缩,它们就会压缩蝾螈舌头底部的软骨骨骼,然后连同舌头的其他组织一起发射出来。 |
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