寒冷的前线将3月以来最寒冷的夜晚带到中西部和东北部,标志着冬季初。 A cold front brought the coldest night since March to the Midwest and Northeast, signaling early winter.

寒冷的前线给美国部分地区带来了3月以来最寒冷的夜晚,中西部和东北部的气温大幅下降。 A cold front has brought the coldest night since March to parts of the U.S., with temperatures dropping significantly across the Midwest and Northeast. 预报员警告说,预计今后几天还会有更多的下降,这促使人们提出有关冷冻和冰冷条件的忠告。 Forecasters warn that additional drops are expected in the coming days, prompting advisories for frost and icy conditions. 突如其来的寒冷是经过一段较温和的天气之后的一段时期之后的,标志着几个地区冬季早日回归的迹象。 The sudden chill follows a period of milder weather and marks an early sign of winter's return in several regions.