| 单词 | crater |
| 释义 | crater (once / 1928 pages) n A crater is a roundish dent left in the surface of something by the impact of something else. Look at the moon: it's covered in craters from thousands of impacts over millions of years. Once in a while, you might hear the word crater used as a verb, as in, "His career really cratered when he started drinking. But you'll usually hear crater used as a noun to refer to a bowl-shaped depression left behind by an explosion or impact. Outside Flagstaff, Arizona, you'll find Meteor Crater, one of the most well-defined impact craters on the surface of the Earth. It's almost a mile across, even though the meteor that created it was less than 100 yards in diameter. WORD FAMILYcrater: craters USAGE EXAMPLESDespite this, the coalition left the Old Bridge intact until early December, when air strikes reportedly left craters on approach roads on both sides. BBC(Dec 27, 2016) Clues to mysterious impact crater rings, according to this subsurface map obtained from NASA’s Gravity Recovery and Interior Laboratory mission. Science Magazine(Dec 23, 2016) That may be because they're most likely to find it in permanently shady craters at the poles, a difficult place for solar-powered rovers to reach. Science Magazine(Dec 22, 2016) 1n a bowl-shaped geological formation at the top of a volcano Syn|Hypo|Hyper volcanic crater caldera a large crater caused by the violent explosion of a volcano that collapses into a depression maara flat-bottomed volcanic crater that was formed by an explosion; often filled with water formation, geological formation (geology) the geological features of the earth 2n a bowl-shaped depression formed by the impact of a meteorite or bomb Exp|Hypo|Hyper Aristarchus a bright crater on the Moon Copernicusa conspicuous crater on the Moon collector a crater that has collected cosmic material hitting the earth lunar cratera crater on the Earth's Moon depression, natural depression a sunken or depressed geological formation Crater (once / 21412 pages) n WORD FAMILY Crater: Craters USAGE EXAMPLESYellowstone, Crater Lake and Hawaii Volcanoes already are on the list of parks with federally protected geothermal features. Seattle Times(Jan 02, 2017) Yellowstone, Crater Lake and Hawaii Volcanoes are on the list. Washington Times(Jan 02, 2017) Also on his retirement bucket list: a boat tour of Crater Lake and an overnight stay at the park lodge. Washington Times(Dec 31, 2016) n a faint constellation in the southern hemisphere near Hydra and Corvus Exp constellation a configuration of stars as seen from the earth |
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