名词
中文翻译：软骨鱼纲同义词
同义词：
['chondrosteans', 'cartilaginous fishes', 'elasmobranchs']
例句：
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1. Chondrichthyes are a group of fish that have a hard skeleton made of cartilage.
软骨鱼纲是一类具有硬骨质骨架的鱼类，由软骨构成。
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2. The Chondrichthyes are found in all oceans and seas around the world.
软骨鱼纲在全球所有海洋和海域都有分布。
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3. In the fossil record, Chondrichthyes are one of the oldest groups of fish.
在化石记录中，软骨鱼纲是最早的鱼类之一。