英语词汇radioactivity怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	radioactivity
释义	radioactivity 英/ ?re?di???k?t?v?ti / 美/ ?re?dio??k?t?v?ti / 简明释义 n.放射性，放射现象；放射物（或其辐射） CET6/ 网络释义 1 ?放射性放射性短语 1 extinct radioactivities 绝迹放射性 2 leucine radioactivities 亮氨酸标记
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