单词 | carboniferous |
释义 | Word Frequency carboniferous(ˌkɑːbəˈnɪfərəs) adjective yielding coal or carbon Word Frequency Carboniferous(ˌkɑːbəˈnɪfərəs) adjective 1. of, denoting, or formed in the fifth period of the Palaeozoic era, between the Devonian and Permian periods, lasting for nearly 64 million years during which coal measures were formed noun 2. the Carboniferous |
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