Mdb
abbr. 元数据库（Meta Datase）
🗣️ 情景例句
I hope he's in a good mood.
我希望他心情不错。
You must reap what you have sown.
种瓜得瓜，种豆得豆。
I had come ten miles since leaving the town,
从小镇出来，我走了10英里。