| 单词 | palaeozoic era |
| 释义 | Palaeozoic eraPalaeozoic eraan era of 350 million years duration, from the beginning of the CAMBRIAN PERIOD to the end of the PERMIAN PERIOD, lasting from 590 to 240 million years ago. |
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英语词典包含2567994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。