单词 | geological era |
释义 | geological era (once / 319441 pages) n WORD FAMILY geological era: geological eras USAGE EXAMPLESWe’re at an absolute hinge moment, not just for our country; we’re at a hinge moment for our geological era. Slate(Dec 13, 2016) It’s like nothing else, from another geological era. Wall Street Journal(Jul 25, 2016) A stand-out song is Holocene, a title that refers to both a bar in Portland and a geological era. The Guardian(Jun 22, 2013) n a major division of geological time; an era is usually divided into two or more periods Syn|Exp|Hyper era Age of Mammals approximately the last 63 million years Age of Reptilesfrom 230 million to 63 million years ago Paleozoic erafrom 544 million to about 230 million years ago geologic time, geological time the time of the physical formation and development of the earth (especially prior to human history) |
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