英语词汇retroactive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	retroactive
释义	retroactive adj (fml 文) effective from a past date 溯及既往的 ; 有追溯效力的 The new law was made retroactive to 1 January, ie as if it had come into effect then. 新法令生效日期可追溯到1月1日.
随便看	love-potion lover love-seat lovesick love-song love-story loving loving-cup loving-kindness lovingly low low-born lowbrow Low Church Low-Churchman low-class low-down lower lower case Lower Chamber lowermost low frequency low-key lowland lowlander

英汉双解词典包含38652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。