| 单词 | Carboniferous |
| 释义 | Carboniferous UK [ˌkɑ:.bə'nɪf.ər.əs] US [ˌkɑ:r.bə'nɪf.ɚ-] adjective specialized ■from or referring to the period of geological time, between around 363 and 290 million years ago, when the first reptiles appeared and there were forests covering large areas which later formed Earth's coal layers 石炭纪的（石炭纪是距今约3.63亿至2.9亿年前的地质时期，爬行动物首次出现，该时期存在的广袤森林后来形成了地球的煤层） •Carboniferous rocks含碳的岩石 |
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