VOA 极地涡流
Captain Walker is a meteorologist with the Washington Post's Capital Weather Gang. The polar vortex, a spinning low pressure system of very cold air that spins over the North Pole or the South Pole. And we are currently getting affected by the North Pole for the vortex when the Jet Strea came South, the floodgates open from the North. And we had a direct flow from the Arctic.Brian Allen, VOA news, Washington.
沃克长官是华盛顿邮报首都气象组的气象学家。(他说，)极地涡流是一种由南北极扩散的极寒空气低压槽。这股来自北极的涡流南下时，气流闸向北门户洞开，于是我们直接承受了来自北极的寒流。
布赖恩. 艾伦，VOA新闻，华盛顿报道。
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