The falling price of oil also overshadowed a Labor Department report showing that U.S. workers' efficiency grew at a slightly slower pace in the second quarter.
油价的下跌同时让劳工部门的报告显得有些黯然失色，报道显示二季度美国的生产率仅有微不足道的提升。
The falling price of oil also overshadowed a Labor Department report showing that U.S. workers' efficiency grew at a slightly slower pace in the second quarter.
油价的下跌同时让劳工部门的报告显得有些黯然失色，报道显示二季度美国的生产率仅有微不足道的提升。
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