问题描述：
英语翻译
it’s why I’ve been focused on fuel efficient cars since the day I took office.Over the last few years,the annual number of miles driven by Americans has stayed roughly the same,but the total amount of gas we use has been going down.In other words,we’re getting more bang for our buck.
it’s why I’ve been focused on fuel efficient cars since the day I took office.Over the last few years,the annual number of miles driven by Americans has stayed roughly the same,but the total amount of gas we use has been going down.In other words,we’re getting more bang for our buck.
问题解答：
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