国家经济研究局（The NationalBureauof EconomicResearch 以下称NBER），美国的权威经济周期公断机构，断定自从上一年12月开始美国已经进入了经济衰退。
The National Bureau of Economic Research, arbiter of American business cycles, determined that America’s economy has been in recession since December 2007.
国家经济研究局（The NationalBureauof EconomicResearch 以下称NBER），美国的权威经济周期公断机构，断定自从上一年12月开始美国已经进入了经济衰退。
The National Bureau of Economic Research, arbiter of American business cycles, determined that America’s economy has been in recession since December 2007.
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