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单词	black shale
释义	black shale noun : a dark form of shale characterized by a relatively high degree of carboniferous compounds The studies of others indicate that major phosphorite deposits are often associated with black shales and accumulated during only a few epochs of geologic history. D. Z. Pipe et al., Science, 4 Apr. 1975 Word History First Known Use 1730, in the meaning defined above
随便看	Joliet joling Joliot-Curie joll jolled jolley jollie jollied jollier jollies jolliest Jolliet jollification jollifications jollified jollifies jollify jollifying jollilier jolliliest jollily jolliness jollinesses jolling jollities

英语词典包含469781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。