累退率

【法】 regressive rate

累的英语翻译：

accumulate; repeated; tire; weary; work hard

退的英语翻译：

cancel; fade; move back; quit; recede; retreat; withdraw

率的英语翻译：

frank; hasty; lead; modulus; quotiety; rash; rate; ratio; usually
【医】 rate
【经】 rater.