这个句子来源于Verbal第二版,逻辑第28题的解释。二楼附原文。
Limiting the use of the coupons to those who earned them and their immediate families rewards passengers for flying the airline and encourages them to continue to do so while at the same time making the sale of the coupons useless.
limiting和making并列,貌似rewards和encourages并列,但是想不明白红色背景的部分是什么意思。求教NN~谢谢-- by 会员 Aviva0307 (2011/6/28 11:25:50)