下颚的英文：
mandible
mentum
submaxilary

The apex of the insect maxilla.
昆虫下颚的顶点

The cutthroat trout is named for the bright red streak beneath its lower jaw
下颚下方具鲜红的条纹，故名。

The boxer saw his chance and struck out at his opponent's jaw
那位拳击手看准了机会,猛击对手的下颚。

Some ants have extra powerful jaws.
有些蚂蚁的上下颚特别强而有力。

He chucked the child under the chin.
他轻轻拍打那个小孩的下颚。

"beard:The hair on a man's chin, cheeks, and throat."
胡子:男人下颚、两颊及喉头的毛发。

Tyson put in some telling blows to Tucker's chin.
泰森重击了塔克的下颚几拳.

He has a receding chin [hairline].
他的下颚[额头的发际]向后缩[削]。

His chin have the squareness which mark the man of determination.
他的四方下颚标志著男人的决断力。

Large black petrel of southern seas having a white mark on the chin.
南海大型黑色的海燕，下颚上有白色斑点。

They strip it with their mandibles and pack it into the pollen baskets on their legs.
它用上颚把蜂胶剥下来，把它放进它腿上的花粉篮里。

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

Either of two laterally moving appendages situated behind the mandibles in insects and most other arthropods.
(昆虫的)下颚骨位于昆虫和大多数其他节肢动物上颚后面的附属活动器官