英语词汇“chalcolithic period”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	chalcolithic period
释义	Chalcolithic period Chalcolithic period the copper and stone age, regarded as occurring in the period 5000 BC to 3500 BC.
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Chalcolithic period