请输入您要查询的英文单词：
单词
radioactivity
释义
— radioactivity
/ˌreɪdijowæk
ˈ
tɪvəti/
noun
[
noncount
]
the
radioactivity
of certain elements
某些元素的放射性
radioactive
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custodial sentence
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custom built
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customer base
英汉双解词典包含109353条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。
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更新时间：2026/8/13 8:58:08