哎呀 (āi yā): 驚きのインタージェクション

Oh no, I left my keys in the office, and now I can't get into my apartment.

Wow, this math problem is so hard that I have no idea where to even start.

Oops, you accidentally stepped on my foot, but it's okay.

Wow, you look so beautiful in this new dress; I almost didn't recognize you!

Oh dear, it's already 10 PM; I need to hurry home, and I still have to get up early for a meeting tomorrow.