aha

Aha, so both Karen and Steve had the day off work yesterday? The plot thickens!

啊哈，卡伦和史蒂夫昨天都没上班？来复杂了！

Aha, so it's you hiding there.

啊哈，原来是你在这儿！

Aha,so it’s you hiding here.

啊哈，是你藏在这儿。