Russia's main stock indexes also plummeted Monday in their first day of trading after a lengthy winter holiday, as falling oil prices also cast a pall over the country's energy-dependent economy.

油价下降也给依赖能源的俄罗斯经济蒙上阴影，在本周一，也就是经过漫长冬季假期后的第一个交易日，俄罗斯主要股指遭到重挫。

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Heavily dependent on foreign oil, America imports 11 million barrels each day.

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The U.S. is heavily dependent on Saudi oil, which provides 1.5 million barrels a day, 14% of its imports.

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