| 单词 | 后牙 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔dry socket〕A painful inflamed condition at the site of extraction of a tooth that occurs when a blood clot fails to form properly or is dislodged.干槽牙：拔牙后牙窝内血凝块未形成或崩解而引起的疼痛，发炎症状美国传统〔sealant〕A plastic resin used in dentistry to coat the chewing surfaces of the back teeth to prevent the growth of cavity-causing bacteria.密封填充物：一种塑料合成脂，修牙时用作后牙咀嚼面的加封层，来抑制导致虫牙细菌的生长美国传统He has had a gold crown fitted on two of his back teeth.他的两颗后牙镶了金齿冠。剑桥国际 |
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