d'oh
exclamation informal (also duh) uk/dəʊ/ us/doʊ/
咄（用于意识到自己或他人做错事或说错话时）
said when you feel stupid, usually after doing something silly, or to show that you think what someone else has done or said is stupid
I forgot to turn it on. D'oh! 我忘了打开开关了，咄！