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-现代词典

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	spectator spectator sport specter spectra spectral spectroscope spectroscopic spectroscopy spectrum speculate speculation speculative speculatively speculator sped speech speech bubble speechify speech impediment speechless speechlessly speechlessness speech synthesizer speech therapist speech therapy

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