If one amount is proportional to another, the two amounts increase and decrease at the same rate so there is always the same relationship between them. (与…) 成比例的
adjective [原级]成比例的;相称的,协调的;(数)成常比的
Loss of weight is directly proportional to the rate at which the disease is progressing. 体重减轻和该病的发展速度成比例。
noun [专属名词](数)比例项
Salary is proportional to years of experience. 薪金视资历而定。
proportional
“ -tional” ⌜ 表示具有某种特性或性质的 - indicating having the quality or characteristic of ~ ⌟