Intrabony
骨内的
🗣️ 情景例句
If you can't pay the bill, you're going to be in trouble.
你如果不能付账，就要倒霉。
Cad! Cur! Beast!
无赖！流氓！杂种！
Education is one of the key words of our time.
教育是我们这个时代的关键词之一。