អូឌីយ៉ូ​ដែល​បាន​ចែករំលែក

so, have you decided on your project topic yet? Yeah, maybe you could focus on something more specific-like air pollution. Why not combine both and compare them? When is the presentation again? Oh, that gives us more time. Sure. I'll work on the slides. And don't forget, Dr. Smith is supervising us.