A beak like mouth part, such as that of a turtle.
复仇常常有如因为被狗咬了一口而反咬它一口。

And then i discovered a part of me that was big My mouth.
那之后我突然发现我身上的一件利器我的伶牙俐齿。

Because when you speak Chinese, you use the former part of your mouth.
因为，当你说汉语的时候，用的是嘴的前部分。

the part of a pipe or cigarette holder that a smoker holds in the mouth.
一种含在烟嘴里的烟管的一部分。

The lower movable part of the front of a medieval helmet, fitting over the mouth or neck.
护面具中世纪头盔前部的可移动的下半部分, 覆盖嘴或脖子

Studies on unstable seabed factors and shallow stratum structural features in the middle part of Pearl River Mouth Basin
珠江口盆地中部浅地层结构特征与海底不稳定因素研究

An articulatory gesture made by turning the tip of the tongue back against the roof of the mouth. The back of the tongue makes contact with the back part of the palate.
舌尖抵硬腭的发音姿势。舌背和上腭的后部接触。