[C] one of the two bones that your teeth are in

颌，下颚:

a broken jaw

碎裂的颌骨

an animal with two rows of teeth in its lower jaw

下颌有两排牙齿的动物

[C usually singular] the lower part of your face. Its shape is sometimes thought to show your character

下巴，下颚:

He punched him on the jaw.

他一拳打在他的下巴上。

a rugged physique and a strong square jaw

强健的体格以及结实的方下巴

She's got a very determined jaw.

她一脸坚毅。

sb's jaw dropped, used to say that someone looked surprised or shocked

某人张口结舌〔用来形容某人的惊讶或震惊〕:

'You're not serious, are you?' Ellen's jaw dropped.

“你不是认真的吧？”埃伦惊讶地张大了嘴。

jaws, [plural]

the jaws of death / defeat / despair etc, [literary] a situation in which something unpleasant almost happens

死亡边缘/胜负关头/绝望边缘等:

She had saved him from the jaws of death.

她把他从鬼门关救了回来。