In fact America's productivity growth soared during the recession as firms sacked workers faster than their output fell.
由于企业解雇工人的速度比其产出下降速度快，美国的生产率在衰退期间实际上飙升了。
Production has soared twelvefold since 2000, to 4.9 trillion cubic feet, or a quarter of the country's total gas output.
从2000年开始，美国的页岩天然气产量已经激增了十二倍，达到了4.9万亿立方英尺，大约占全国天然气总产量的四分之一。
Production has soared twelvefold since 2000, to 4.9 trillion cubic feet, or a quarter of the country's total gas output.
从2000年开始，美国的页岩天然气产量已经激增了十二倍，达到了4.9万亿立方英尺，大约占全国天然气总产量的四分之一。
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