极地旋涡给美国各地数百万人带来 威胁生命的寒冷 在周末洪水过后 Polar vortex brings life-threatening cold to millions across the U.S. after weekend floods.

一个危险的极地旋涡横扫美国, 给周末致命洪水后带来危及生命的寒冷。 A dangerous polar vortex is sweeping across the U.S., bringing life-threatening cold after the weekend's deadly flooding. 当局警告极端温度,并敦促居民留在室内,以避免冻伤和低温。 Authorities warn of extreme temperatures and urge residents to stay indoors to avoid frostbite and hypothermia. 预计寒冷将影响到数以百万计的人,并对没有适当住所或取暖的人构成重大风险。 The cold snap is expected to affect millions and pose significant risks to those without proper shelter or heating.