Definition
The plural form of 'tooth'.
牙齒
He brushes his teeth twice a day to maintain good oral health.
他每天刷牙兩次以保持口腔健康。
She went to the dentist for a check-up on her teeth.
她去看牙醫檢查她的牙齒。
After the orthodontic treatment, his teeth now look very aligned.
經過牙齒矯正治療後，他的牙齒現在看起來非常整齊。