脊椎 /jǐzhuī/ angolul

backbone [backbones]▼(series of vertebrae that encloses the spinal cord)
noun
[UK: ˈbæk.bəʊn] [US: ˈbækˌboʊn]

spine [spines]▼(backbone)
noun
[UK: spaɪn] [US: ˈspaɪn]

vertebra [vertebrae]▼(any of the small bones making up the backbone)
noun
[UK: ˈvɜː.tɪ.brə] [US: ˈvɝː.tə.brə]

vertebral column [vertebral columns]▼noun
[UK: ˈvɜː.tɪ.brə ˈkɒ.ləm] [US: ˈvɝː.tə.brəl ˈkɑː.ləm]