英语词汇“lower cambrian”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	lower cambrian
释义	DictionarySeeCambrian Lower Cambrian Lower Cambrian [′lō·ər ′kam·brē·ən] (geology) The earliest epoch of the Cambrian period of geologic time, ending about 540,000,000 years ago.
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Lower Cambrian