n. 脊椎动物(vertebrate的复数)
n animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium

vertebrates的用法和样例:

例句

用作名词(n.)
  1. All mammals are umbilicate vertebrates.所有的哺乳类动物都是有肚脐的脊椎动物。
  2. The fish is the oldest vertebrates in the planet.鱼类是地球上最为古老的脊椎动物。

Fish Use Whole Bodies When They Eat Fish are animals that live in the water. They are also vertebrates animals that have a backbone and a spine. They have gills that permit them to take oxygen from the water. But have you ever wondered how vertebrate

发表于:2019-01-12 / 阅读(211) / 评论(0) 分类 2015年VOA慢速英语(七)月

Acanthostega 这种生物已经演化出前后肢,但每肢都有8趾。这种生物是从鱼类进化到两栖类的过渡产物。而且,它具有更多的鱼类特征,如有鳃、鳍和只能在水中起作用的感官。伦敦自然历史博

发表于:2019-02-24 / 阅读(202) / 评论(0) 分类 英语听力文摘 English Digest
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