下颌的英文：
underjaw

The upper and lower jaws possess straight tooth rows and the jaw arches are almost rectangular in shape
上、下颌具有直的齿列，而颌弓几乎呈直角形。

Infected mandibular, parotid and anterior cervical nodes usually cause subcutaneous induration and surface bulging
感染的下颌，耳下和颈前淋巴结，通常引起皮下硬结和表面突起。

The leakeys found a lower jaw, some skull bones, and some limb bones that provided the necessary clues
利基夫妇找到了可提供必要线索的一块下颌骨、一些头骨和肢骨。

Project one's jaw in defiance.
伸出下颌以示轻蔑

A square jaw/chin
棱角分明的下颌[下巴]

The flesh under the lower jaw,especially when plump or flaccid.
下颌垂肉，双下巴下颌底部的(尤指胖乎乎或松垂的)肉

This can cause lower jaw pains as well as muscle pains in the back of the head.
这会引发下颌痛和后脑勺肌肉痛。

The mandible or maxilla or the part of the face covering these bones.
颌骨的部分上颌骨或下颌骨或被脸所掩盖的骨头的一部分

He put one of his feet on the fish and slit him quickly from the vent up to the tip of his lower jaw.
他用一只脚踩在鱼身上，从肛门朝上，倏的一刀直剖到它下颌的尖端。

A fleshy part similar to a jowl,such as the dewlap of a cow or the wattle of a fowl.
颈垂肉类似下颌垂肉的多肉部位，如母牛的颈垂肉或禽鸟的嗉囊