ostracoderm
美
英
- 网络甲胄鱼；海滩上捡到甲胄鱼
复数：ostracoderms
n. | 1. an extinct, jawless, mainly freshwater fish, dating from the Silurian and Devonian periods, that had a flat body encased in a layer of protective bony plates and scales |
| 单词 | ostracoderm | ||
| 释义 | ostracoderm美 英
复数：ostracoderms
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