英语词汇“middle cretaceous”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	middle cretaceous
释义	DictionarySeeCretaceous Middle Cretaceous Middle Cretaceous [′mid·əl krə′tā·shəs] (geology) The geologic epoch between the Upper and Lower Cretaceous, beginning approximately 120,000,000 years ago.
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Middle Cretaceous