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英语单词

kolm是什么意思

kolm

英[kəʊm] 美[koʊm]
  • n.铀煤页岩,柯姆煤
  • 网络解释.含铀煤结核;铀煤;剥裂无烟煤;铀煤页岩





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考试词汇

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频率词汇

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单词首字母

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