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.
Bazı fabrikalar çevreyi kirletir.
- Some factories pollute the environment.
Fabrikalardan gelen gazlar havayı kirletir.
- Exhaust from factories pollutes the air.
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.