英语词汇“Precambrian”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	Precambrian
释义	PrecambrianPrecambrian /priˈkæmbriən/ noun the Precambrian earth science the very long period of time in the Earth’s history from about 4,600 million years ago, when the hard outer surface of the Earth first formed, until about 570 million years ago, when simple forms of life first appeared on the Earth—Precambrian adjective: Precambrian rocks
随便看	well-traveled well-turned well-turned-out well-versed well-wisher well-woman well-worn Welsh welsh Welshman Welshwoman welt welter welterweight Welty, Eudora wench wend went wept were we're weren't werewolf Wernicke's area wert

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