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.
Petrol sızıntısı körfezi kirletti.
- The oil spill polluted the bay.
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.