因为当人们俯卧的时候，下颚会比平时更加突出。
When people sleep on their front, their lower jaw is positioned further forward than normal.
下颚突出式咬和如果有两颗或两颗以上的上门牙无法与下门牙接触，属于失格。
An undershot bite in which two or more of the upper incisors lose contact with two or more of the lower incisors is a disqualification.
就连方形脸的人都能佩戴它们，因为“它们能突出眼睛的部位，并且圆形的底盘让下颚线条更柔和，”莫兰德说。
Even people with square faces can wear them, because "they place emphasis on the eyes and the rounded bottom softens the jawline", Morland told Cosmopolitan.
三角脸的下颚突出，比颧骨更宽。
A triangular face has a prominent jaw that is wider than the cheekbones.
42岁的营养学家詹妮·茨斯科，左图理发前，右图理发后。她表示，新发型不仅突出了她的下颚，还使她的面部更加匀称了。
Nutritionist Jenny Tschiesche, 42, pictured before (left) and after (right) the haircut. She said it made her jaw look accentuated and her face more symmetrical.
首选的咬和为钳状咬和或轻微的下颚突出式咬和。
脸上很多皱纹，胡子拉碴，下颚有些轻微的突出，在阳光下看起来比他自己觉得还冠冕堂皇。
His face was broad and craggy from the sun, with salty whiskers and a lower jaw that protruded slightly, making him look prouder than he felt.
上颚突出式咬和或下颚突出式咬和都属于缺陷，严重的牙齿不整齐也属于缺陷。
Teeth meet in a scissors bite or they may be level. Overshot or undershot bites faulted to the degree of severity of the misalignment.
虽然robert认为Brendan有一个较明显的方型脸、下颚线，他有一个较突出下巴。这也许会让他归为三角形或其它脸型。
Although Robert Shared that Brendan has a strong square shape and jaw line, he has a more prominent chin that might actually slide Brendan into a triangular or other facial shape category.
过度的上颚突出式咬合或下颚突出式咬合都属于缺陷。
在脓胞肿瘤出现大量的蛆寄生后，袋獾的面部会严重畸形，使下颚的牙齿突出、无法咬合，染病的袋獾会先把致命肿瘤传染给其他个体，最后才挨饿而死。
Pustulant tumors that become infested with maggots deform their faces, forcing teeth from their jaws. The devils eventually starve, but not before passing on the virulent cancer.
梭鱼，康马氏鲛一种凶猛，大多为魣属的热带海生鱼，类似梭鱼，有带尖牙的突出的下颚，包括一些可食种类。
Any of various fierce, mostly tropical marine fishes of the genus Sphyraena that resemble pike, have a projecting lower jaw with fanglike teeth , and include some edible species.
梭鱼，康马氏鲛一种凶猛，大多为魣属的热带海生鱼，类似梭鱼，有带尖牙的突出的下颚，包括一些可食种类。
Any of various fierce, mostly tropical marine fishes of the genus Sphyraena that resemble pike, have a projecting lower jaw with fanglike teeth , and include some edible species.
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