| 单词 | 下牙 |
| 释义 | 〔overbite〕A malocclusion of the teeth in which the front upper incisor and canine teeth project over the lower.（牙齿）覆咬合：牙齿的咬合不正，其中上前切牙和犬齿突出盖在下牙上〔bitewing〕A dental x-ray film with a central projection on which the teeth can close, holding it in position for the radiographic examination of several upper and lower teeth simultaneously.咬翼片：一种牙齿X光片，牙齿可以合在其中心投影处，固定在射线照片可以同时检查几颗上牙和下牙的位置 |
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