实用英语：超级惜油
随着美国国内油价的不断上涨，越来越多的车主都开始寻找“用有限的油量跑更多里程”的窍门。由此，致力于钻研惜油良方的驾驶者们还专门造了一个词来推广他们的“超级惜油”良策。请看外电的报道：
As US gasoline prices hit records on almost a daily basis, an increasing
number of motorists are following a radical driving technique designed to eke
out every last mile from a tank of fuel. Known as 'hypermiling', the method can
double gas mileage, even in gas-guzzling vehicles that would normally get less
than 20 mpg.
美国油价几乎每天都创出新高，于是越来越多的驾车人士想方设法用一箱油跑最多的路。被称为“超级惜油”的驾驶方法能够使汽油里程数加倍，即使在那些平时每加仑行驶不到20英里的高油耗车上也能实现。
该报道中，hypermiling就是美国的节油车主们造出来表达“超级惜油”的新词，也是“用有限的油量跑更多里程”的意思。Gas mileage是the
ratio of the number of miles traveled to the number of gallons of gasoline
burned(一加仑汽油所行驶的里程数)，而gas-guzzling vehicle指的是an automobile that has low fuel
efficiency, getting relatively few miles per gallon(高油耗的机动车)，也叫做gas-guzzler。
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