dentil

例句：

1. 1.The dentist examined her teeth and found a cavity.
   牙医检查了她的牙齿，发现有龋洞。
2. 2.The root of the tree is visible through the soil.
   树根从土壤中可见。
3. 3.The toothache made it difficult for her to eat or speak.
   牙痛使她难以进食或说话。