vertebrate

/ˈvərtəˌbreɪt/

animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium

中文释义：脊椎动物

Vertebrates include mammals, birds, reptiles, amphibians, and fish.

脊椎动物包括哺乳动物、鸟类、爬行动物、两栖动物和鱼类。

The backbone is a defining characteristic of all vertebrates.

脊柱是所有脊椎动物的一个决定性特征。