Abg
abbr. 气骨导间距（air bone gap）
🗣️ 情景例句
Thank you.
谢谢。
An evening red and a morning grey, is a sign of a fair day.
晚霞红如火，晓色青如灰，定是晴朗天。
Three months passed, and then one morning, Sam found his wallet outside his front door.
3个月过去了，后来在一天早晨，萨姆在自己的大门外发现了他的钱包。