The proposed new fuel economy plan will require passenger cars and light trucks to get an overall average of 35.5 miles per gallon by 2016.是什么意思_The proposed new fuel economy plan will require passenger cars and light trucks to get an overall average of 35.5 miles per gallon by 2016.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句