"And so he then went back and worked on technology adaptation and designed very low-cost, small affordable solar panels with fitted bulbs, maybe one or two bulbs per household, made sure that the bulbs could be moved from room to room, depending where people wanted the light,".

VOA: standard.2009.12.18

The cost per part to increase the safety of the Pinto, they calculated at $11.00 per part.

能增加平托安全性的隔板，每块成本是11美元。

耶鲁公开课 - 公正课程节选

Like when we went to go see Wicked, we did it on the lottery and it cost us $26 or so per ticket

比如说我们去看《魔法坏女巫》，我们被抽中了，每张票大概只花了26美元，

实惠的歌舞剧 - SpeakingMax英语口语达人

Eleven dollars per part at 12.5 million cars and trucks came to a total cost of $137 million to improve the safety.

给1250万辆轿车和卡车配上11美元的隔板,提高安全性，共需花费一亿三千七百万美元。

耶鲁公开课 - 公正课程节选