防污染的

例句：

1. 1. The factory has been heavily polluting the air with its fumes.
   这家工厂的废气严重污染了空气。
2. 2.The river is severely polluted due to industrial waste.
   由于工业废物，这条河严重污染。
3. 3. The government has introduced stricter regulations to reduce pollution in the city.
   政府已经实施更严格的规定来减少城市中的污染。