1973年,美国30%的原油需求依赖进口。如今,这一数字已翻倍,达到 60% 以上。天然气价格之所以如此之高,部分原因是过去几十年来我们没有全面的国家能源政策。
(In 1973, America imported 30 percent of its crude oil needs. Today, that number has doubled to more than 60 percent. Gas prices are as high as they are now in part because we've had no comprehensive national energy policy for the past few decades.)