英语词汇“Ordovician period”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	Ordovician period
释义	Ordovician period 基本英英近义反义奥陶纪 Noun: from 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds近义词 Ordovician奥陶纪
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