retrogression怎么读
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- retrogression英语什么意思：n. 后退，倒退，退步，消退，堕落，衰微；【生物学】退化；【天文学】逆行(运动)；【化学】逆反应。 Persist in progress and oppose retrogression! 坚持进步，反对倒退! adj. -sive
