orthodontics
n[sing v]
(medical 医) (branch of dentistry that deals with) preventing and correcting irregularities in the position of the teeth and jaws 正牙(学).
🗣️ 情景例句
Well, you're the young man who did all this.
嗯, 你就是那位拍这些照片的年轻人。
I'm good at it.
我做这个很在行。
A foreigner living in a Swedish village wrote to the Ombudsman complaining that he had been ill-treated by the police, simply because he was a foreigner.