interj. An exclamation, expressive of surprise, pity, complaint,
entreaty, contempt, threatening, delight, triumph, etc., according to
the manner of utterance.
interj. 啊, 哈
1. Ah, I see what you mean now.
啊，我现在明白你的意思了。
2. Ah, that was a great movie!
啊，那是一部很棒的电影！
3. Ah, I forgot to bring my book.
啊，我忘记带我的书了。