名词 vertebrate:

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

vertebrateadj.脊椎的；脊椎动物的n.脊椎动物vertebrate systematics脊椎动物分类学vertebrate collagenase脊椎动物胶原酶, 脊柱动物胶原酶vertebrate paleontology古脊椎动物学vertebrate neurobiology脊椎动物神经生物学vertebrate biochemistry脊椎动物生物化学vertebrate thymus gland脊椎动物胸腺vertebrate palaeontology脊椎动物古生物学vertebrate morphogenesis脊椎动物形态发生学vertebrate bioenergetics脊椎动物生物力能学vertebrate cell culture medium脊椎动物细胞培养基

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。