英语词汇“radioactivity”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	radioactivity
释义	radioactivity n. the spontaneous disintegration of atomic nucleii, with the emission of usu. penetrating radiation or particles.
随便看	sulphureous sulphuretted sulphuric sulphurize sulphurous sultan sultana sultry sum sumac Sumerian summa summa cum laude summarize summary summation summer summersault summertime summit summon summons summum bonum sumo sump

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