EXCLAM (書面語中用於表示在交談時作出回應或引起他人注意或表示驚訝、失望)啊Ah is used in writing to represent a noise that people make in conversation, for example to acknowledge or draw attention to something, or to express surprise or disappointment. (書面語中用於表示在交談時作出回應或引起他人注意或表示驚訝、失望)啊 [feelings]
I'm meeting Anna Langenbach. Ah, this seems to be the train now.