其中最严重的有水污染和空气污染的翻译：One of the most serious water pollution and air pollution 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

One of the most serious water pollution and air pollution have

One of the most serious water pollution and air pollution

In which most serious has the water pollution and the air pollution

One of the most serious water pollution and air pollution