rat.a.bleadj.(形容词)That can be rated, estimated, or appraised:可以估定,可以预测,可以推算的:例句:ratable income.可估收入Proportional.按比例计算的Chiefly British Liable to assessment; taxable.【多用于英国】 应征地方税的;可征税的【引伸】rat.abil.ity 或rat.ablenessn.(名词)rat.ablyadv.(副词)