英语词汇“ceiling”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

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单词	ceiling
释义	ceilingceiling /ˈsilɪŋ/ ●●● S3 W3 noun [countable] Etymology ETYMOLOGYceiling Origin: 1500-1600 ceil to provide with a ceiling (16-20 centuries) Collocations COLLOCATIONS► raise/lower the ceiling (on something) Congress may refuse to raise the debt ceiling (=the amount of debt the government is allowed to have). ► gone through the ceiling Health care costs have gone through the ceiling (=increased to very high levels). 1the inner surface of the top part of a room → roof: a room with high ceilings2the largest number or amount of something that is officially allowed: ceiling of a military-spending ceiling of $13 billionraise/lower the ceiling (on something) Congress may refuse to raise the debt ceiling (=the amount of debt the government is allowed to have). Health care costs have gone through the ceiling (=increased to very high levels).ceiling on Gambling is allowed, but there is a $5 ceiling on bets.3the height of the lowest layer of clouds over an area4technical the greatest height at which an aircraft can fly or is allowed to fly [Origin: 1500–1600 ceil to provide with a ceiling (16–20 centuries)] → see also glass ceiling
随便看	external external fertilization externalization externalize externally externals extinct extinction extinguish extinguisher extirpate extol extort extortion extortionate extortionately extortionist extra- extra extracellular extract extraction extractor extracurricular extraditable

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