| 单词 | Devonian |
| 释义 | Devonian (once / 9785 pages) n WORD FAMILY Devonian: Devonians USAGE EXAMPLESHe does not, of course, reveling in the Devonian scenery, loaning himself out as a dog-walker and making friends with local owls. Seattle Times(Sep 30, 2016) A Devonian ironmonger, Newcomen built his device to pump water out of the south west’s prolific tin mines. The Guardian(Sep 27, 2016) Their numbers began to decline throughout the Silurian, Devonian and Carboniferous periods, before completely petering out by the end of the Permian for reasons unknown. The Verge(Jul 10, 2016) n from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites Syn|Exp Age of Fishes, Devonian period geological period, period a unit of geological time during which a system of rocks formed |
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