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单词 vertebra
释义
ver·te·bra (vûrtə-brə)
n. pl. ver·te·brae(-brā, -brē) or ver·te·bras
Any of the segments, composed of cartilage in cartilaginous fishes and of bone in other vertebrates, that form the spinal column.

[Middle English, from Latin, from vertere, to turn; see wer-2 in the Appendix of Indo-European roots.]
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