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radioactivity

US [ˌreɪdioʊækˈtɪvəti]
UK [ˌreɪdiəʊækˈtɪvəti]
  • n.放射性;放射(现象)
  • Web放射现象;放射性活度;放射能
n.
1.
放射性;放射(现象);

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Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
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