柯林斯詞典regressive /r??ɡr?s?v/ 1. ADJ Regressive behaviour, activities, or processes involve a return to an earlier and less advanced stage of development. (行為、活動或過程)退化的; 倒退的[正式] ...some of the symptoms of regressive behaviours: thumb sucking, bed wetting, having problems sleeping. ...倒退行為的一些癥狀：吮姆指、尿床和睡眠不好。 返回 regressive劍橋詞典(of tax ) lower on large amounts of money , so that the rich are less affected （稅收）遞減的（對富人的影響比對窮人的?。?返回 regressive