南风

There is a strong south wind.

有一股强大的南风。

All of a sudden,a southeasterly wind sprang up and the sky was overcast.

忽然刮起东南风来,一间天了乌云。

As the plane exited the storm into the prevailing southwesterlies, there was a rapid increase in both the head wind and updraught.

其后航机飞出暴雨区进入盛行西南风带，逆风和升气流迅速加强。