| 单词 | order Ostracodermi |
| 释义 | order Ostracodermi (extremely rare) n WORD FAMILY order Ostracodermi n extinct group of armored jawless vertebrates; taxonomy is not clear Syn|Hyper Ostracodermi animal order the order of animals |
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英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。