pro ra·ta /ˈprəʊˈrɑːtə,-ˈreɪ-/〈拉〉I 按比例;成比例 cut supply pro rata to offset any decline in demand 按比例削减供给以抵销需求的下降 Rates for three or six months are pro rata. 3个月或6个月的收费价格按比例增减。 II 按比例的;成比例的 The quota is allocated on (a) pro rata basis. 配额是按比例分派的。 [字面意义: according to the rate]