英语词汇active core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	active core
释义	active core retroactiveadj. 反动的,追溯的,有追溯力的,从以往某天开始生效 correctiveadj. 有改正作用的;矫正的 n. 纠正错误看法之物 ... nonreactiveadj. 无电抗性的,不反应的 refractiveadj. 折射的 activatorn. 催化剂,触媒剂
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