英语词汇retroactivities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	retroactivities
释义	retroactivity n.retroactive的变形 retroactive[,retrəu'æktiv] adj. 逆动的；反作用的追溯既往的；有追溯效力的从以前某天起开始生效的
随便看	grease spot photometer grease spots grease table grease tabling grease the dukes grease the fat pig grease the fat sow grease the hand of grease the palm of grease the wheels grease trap Grease Traps greasewood greasewoods greasier greasies greasiest greasily greasiness greasinesses greasing greasing of palms greasings greasy greasy grind

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