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	radon noun uncountable chemistry UK /ˈreɪdɒn/ DEFINITIONS1 1 a chemical element that is a rare radioactive gas. Its symbol is Rn. Synonyms and related words Radioactivity and radiation alpha particle atomic becquerel Synonyms and related words Gases acetylene ammonia argon Synonyms and related words Chemical elements actinium alkali metal aluminium radon noun uncountable chemistry US /ˈreɪdɑn/ DEFINITIONS1 1 a chemical element that is a rare radioactive gas. Its symbol is Rn. Synonyms and related words Radioactivity and radiation alpha particle atomic becquerel Synonyms and related words Gases acetylene ammonia argon Synonyms and related words Chemical elements actinium alkali metal aluminum
随便看	seemly seem/look/be set fair seen seen against something see off see out see over seep seepage seep away seer see reason/sense see red seersucker seesaw see someone coming (a mile off) see someone right see someone/something for something see something coming (a mile away) see something coming (a mile off) see stars see that someone does something/that something is done seethe see the back of someone see the colour of someone’s money

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