The temperature was sub-zero.

气温在零下。

youdao

This expansion can cause the temperature of the air to drop to sub-zero levels.

这种膨胀能够导致空气温度降到零度以下的程度。

youdao

I was lost outside in sub-zero weather from 4:30 in the afternoon until the next morning.

零度以下的天气里，我在野外迷了路，从那天下午四点半一直撑到第二天早晨。

youdao

I was lost outside in sub-zero weather from 4:30 in the afternoon until the next morning.

零度以下的天气里，我在野外迷了路，从那天下午四点半一直撑到第二天早晨。

youdao