英语词汇critical activity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	critical activity
释义	critical activity impracticalityn. 不实用(不切实际；不能实行；不现实) radioactivityn. 放射(性) 辐射能 interactivityn. 交互性；互动
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英汉双解词典包含3607232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。