regressiveadj.退步的；退化的；递减的(税率)；回归的regressive behavior退行性行为regressive analysis回归分析regressive taxation累减税regressive tax rate[经] 递减税率regressive movement回视运动regressive equation回归方程regressive evolution逆行演化regressive sand wave逆行沙波regressive logistics逆向物流regressive structure回归结构