translation.en: For example, fee-bates, a combination of a fee and a rebate in any size class of vehicle you want, can increase the price of inefficient vehicles and correspondingly pay you a rebate for efficient vehicles.
translation.zh: 比如，针对市场上的所有车型 设计一个收费和回扣方案 以提高低效汽车的价格 并相应地，给那些买高效车的人打折