Büyük şehirlerde hava kirlidir.
- The air is polluted in the big cities.
O, dünyadaki en kirli şehirlerden biridir.
- It's one of the most polluted cities in the world.
Fabrikalardan gelen gazlar havayı kirletir.
- Exhaust from factories pollutes the air.
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.