1. The smog is severe!

雾霾太严重了！

2. When the pollution gets really serious, I can't even see the buildings next to me.

雾霾太严重了，附近的建筑都看不清了。

3. I'm very concerned about my son's health. If the air pollution stays like this, he won't ever be able to leave the house.

我很担心我儿子的健康。如果空气质量一直这么差的话，他就不能去外面玩。

4. You've got to drink a lot of fluids.

你应该多喝水。

5. Strong cold air is in the forecast to blow away the smog.

天气预报说有强冷空气要来吹散雾霾了。

6. The weather forecast warned of winds of up to 60-miles-an-hour tomorrow.

天气预报说明天有时速高达60英里的大风。

其他相关天气表达：

1. It hasn't rained a drop for months!

好几个月没下雨了！

2. The heat is unbearable¹!

太热了！

3. It's raining cats and dogs today.

今天下了好大的雨。

4. The drought conditions are severe!

天气太旱了！