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

单词	radon
释义	radonradon /ˈreɪdɑn/ noun [uncountable] (symbol Rn) Etymology ETYMOLOGYradon Origin: 1900-2000 radium science, chemistry a radioactive gas that is an element and that can be dangerous in large amounts
随便看	taunting tauntingly taupe Taurus taut tautological tautologically tautology tavern tawdriness tawdry tawny tax taxable taxable income tax assessor taxation tax avoidance tax base tax bracket tax break tax collector tax cut tax-deductible tax-deferred

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