Meteorologists say roughly 70 percent of the U.S. population, around 240 million people woke up to subfreezing temperatures on Wednesday morning.

气象学家说，美国70％的人口，将近2.4亿人在周三早晨的低温中醒来。

And microorganisms that would otherwise quickly decompose plant and animal tissues operate at slower metabolic rates in these subfreezing temperatures.

在这些低于冰点的温度下，原本会迅速分解植物和动物组织的微生物以较慢的代谢率运作。

Mother nature commonly serves these up in the Arctic but it takes several days of subfreezing temperatures for them to form in the lower 48 states.

大自然母亲通常在北极提供这些食物，但在美国本土的48个州，它们需要几天低于冰点的温度才能形成。

Maybe they didn't tread out a new record, but the dual purpose was to have fun and getting that many riders out in subfreezing temperatures was unsnowmobelievable.

也许他们没有创造新的记录，但是，另一个目的是为了好玩，让许多人在零下的温度下，是不可思议的。

Records were broken or tied all over the Midwest, Northeast, and South as a wall of arctic air brought a week and a half of subfreezing temperatures.

由于北极空气墙带来了一周半的零下温度，中西部、东北部和南部的记录被打破或平局。