oh/əʊ $ oʊ/

int. used to express surprise, happiness, sadness, etc.

int. [表达吃惊、快乐、忧伤等] 哦！啊！：Oh, it's raining heavily outside. 哦！外面在下着大雨。

◇Oh, I'm so sorry to hear that. 啊！听到这个我真感到难过。

用法偶尔也可写作O。Oh后常加标点，O后一般无标点。如：Oh, Mike! = O Mike!