| 单词 | proterozoic |
| 释义 | proterozoic (extremely rare) adj WORD FAMILY proterozoic USAGE EXAMPLESThe eastern part of this proterozoic basement is found on the northern coast of Somalia. Scientific American(Aug 30, 2013) adj formed in the later of two divisions of the Precambrian era proterozoic life forms Syn early at or near the beginning of a period of time or course of events or before the usual or expected time Proterozoic (once / 984943 pages) n WORD FAMILY Proterozoic USAGE EXAMPLESTo live in the future, is to sometimes feel like little more than Proterozoic sludge. The Verge(Apr 13, 2015) Life on land in the Proterozoic: Evidence from the Torridonian rocks of northwest Scotland. Scientific American(Oct 03, 2012) Moreover, they could live in most latitudes, for the indirect evidences of life in the Archeozoic and Proterozoic rocks are widely distributed. Huntington, Ellsworth, Climatic Changes—Their Nature and C...(2011) n from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms Syn|Exp Proterozoic aeon, Proterozoic eon aeon, eon the longest division of geological time |
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