The temperature in Arizona drops to below zero overnight.

一夜之间，亚利桑那州的气温降至零度以下。

In a great blizzard that swept across the East Coast in 1899, even parts of Florida dropped to below zero.

1899年，一场暴风雪席卷东海岸，甚至使佛罗里达州部分地区的气温降到零度以下。

Winter in this area is extremely cold. The temperature often drops to sixty degrees below zero Celsius.

这一地区的冬天非常寒冷，气温经常会降到零下六十摄氏度。

It was fifteen degrees below zero.

气温是零下十五度。

The temperature drops to below zero.

气温降到零度以下。