tooth-tip

例句：

1. 1. She carefully polished her teeth with a soft cloth.
   她用一块软布仔细地擦了擦牙齿。
2. 2.The dentist advised him to keep his teeth clean and healthy.
   牙医建议他保持牙齿清洁和健康。
3. 3. The child's tooth-tip was chipped, requiring immediate attention.
   孩子的牙尖被磕掉了，需要立即处理。