颞下颌的 temporomandibular
下颌的 mandibular
上颌的 maxillary
蹑下颌的 temporomandibular
下颌的轮廓 jawlin ; jawline
鼻颌的 naso-rnaxillary ; nasomaxillary
鼓室下颌的 tympanomandibular
颌的炎性情况 Corneal scar and opacity unspecified ; Inflammatory conditions of jaws
无上颌的 emandibulate
颌的牙槽炎 Corneal pigmentations and deposits ; Alveolitis of jaws
但是，在所有食肉动物中，下犬牙位于颌的前面，只有当嘴张大时上犬牙才能暴露出来。
But in all carnivores, the lower canines are in the front of jaws, and only if the mouth is wide open are the upper canines exposed.
他偶然发现了一个450万年前的有袋动物的颌骨。
He came across the jawbone of a 4.5 million-year-old marsupial.
将黄颌蛇与其他被我们归类为毒蛇的蛇区别开来的，并不是它们没有毒液，而是缺乏一种将毒液输送到猎物体内的有效方法。
What separates colubrids from other snakes we have been classifying as venomous, is not the lack of venom, but the lack of an effective way to deliver the venom into its prey.
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