O, dünyadaki en kirli şehirlerden biridir.
- It's one of the most polluted cities in the world.
Bu nehir kirli değildir.
- This river is not polluted.
Okyanusun büyük alanları kirletildi.
- Large areas of the ocean are polluted.
Bazı fabrikalar çevreyi kirletir.
- Some factories pollute the environment.
The factory polluted the river when it cleaned its tanks.
The lights from the stadium polluted the night sky, and we couldn't see the stars.