uh-oh
exclamation informal uk/ˌʌˈəʊ/ us/ˌʌˈoʊ/
呃噢，哎呀（表示意识到犯了错误或过失的象声词）
used in writing to represent the sound that people make when they discover that they have made a mistake or done something wrong
Uh-oh, I think I just locked my keys in the car. 哎呀，我想我刚把钥匙锁在车里了。