| 21. | The acceleration of tooth decay is caused by lack of care. |
| 不注意保护，牙齿会加速腐坏。
|
| 22. | He got the tooth out at the first go. |
| 他一下子就把牙齿拔了出来。
|
| 23. | She has a good pain in her tooth . |
| 她牙痛得好厉害。
|
| 24. | He yanked out a loose tooth . |
| 他 用力拔出了一颗松动的牙齿。
|
| 25. | a local anaesthetic for the removal of a tooth |
| 为拔牙而施的局部麻醉
|
| 26. | have a tooth extracted |
| 拔牙
|
| 27. | the extraction of a tooth |
| 拔牙
|
| 28. | a loose tooth , thread, screw |
| 松动的牙齿, 线, 螺钉
|
| 29. | an impacted wisdom tooth |
| 阻生智齿
|
| 30. | signs of incipient tooth decay |
| 早期龋齿的征象
|