- [countable]
either of the two bones at the bottom of the face that contain the teeth and move when you talk or eat 颌 the top/upper jaw 上颌 the bottom/lower jaw 下颌 She worked her lower jaw back and forth. 她前后动了动下巴。
Oxford Collocations Dictionaryadjective- bottom
- lower
- top
- …
- clench
- set
- tighten
- …
- drop
- hang
- hang open
- …
- bone
- muscle
- in your jaw
- on your jaw
- to the jaw
- …
- the line of your jaw
- the set of your jaw
- [singular]
the lower part of the face; the lower jaw 下巴；下颌 
Extra ExamplesHe fingered his jaw thoughtfully. 他若有所思地摸着下巴。 He had two days' growth of stubble on his jaw. 他下巴上的胡子茬儿两天没刮了。 He rubbed his sore jaw. 他搓了搓酸痛的下巴。 Her jaw was set, ready for a fight. 她牙关紧咬，随时准备打架。 His jaw jutted stubbornly forward; he would not be denied. 他倔强地扬起下巴，一副不肯罢休的样子。 She dropped her jaw in astonishment. 她吃惊地张大了嘴巴。 She had a fold of flesh under her jaw. 她下巴底下堆起了一层肉。 The stern set of the officer's jaw made Tony realize he was in trouble. 长官紧绷的脸让托尼意识到自己有麻烦了。
Oxford Collocations Dictionaryadjective- bottom
- lower
- top
- …
- clench
- set
- tighten
- …
- drop
- hang
- hang open
- …
- bone
- muscle
- in your jaw
- on your jaw
- to the jaw
- …
- the line of your jaw
- the set of your jaw
- jaws[plural]
the mouth and teeth of a person or an animal 口部；嘴 Extra ExamplesTopics Animalsc1A shark can crush a boat with its massive jaws. 鲨鱼的大嘴可以摧毁一只船。 A spider sank its jaws into my ankle. 一只蜘蛛狠咬了我的脚脖子一口。 Pythons open their jaws wide to swallow their prey whole. 蟒蛇会张开大口将猎物整个吞下。 The antelope could not escape the crocodile's gaping jaws. 那只羚羊无法逃出鳄鱼的大口。 The dog locked its jaws on her leg and wouldn't let go. 那条狗紧紧咬住她的腿不放。
Oxford Collocations Dictionaryadjective- gaping
- open
- massive
- …
- clamp
- close
- lock
- …
- between its jaws
- jaws[plural]
the parts of a tool or machine that are used to hold things tightly （工具或机器的）钳夹部分，钳口 the jaws of a vice 虎钳口
see also open-jaw
Word Originlate Middle English: from Old French joe ‘cheek, jaw’, of unknown origin.
Idioms
somebody’s jaw dropped/fell/sagged
used to say that somebody suddenly looked surprised, shocked or disappointed （突然吃惊或失望得）张口结舌，目瞪口呆，垂头丧气
the jaws of death, defeat, etc.
- (literary)
used to describe an unpleasant situation that almost happens 鬼门关；失败的险境 They narrowly escaped from the jaws of death. 他们侥幸逃脱了死亡的魔爪。
the jaws of a tunnel, etc.
the narrow entrance to a tunnel, etc., especially one that looks dangerous （隧道等处尤指看起来危险的）狭窄入口
snatch victory from the jaws of defeat
to win something even though it seemed up until the last moment that you would lose 在最后一刻反败为胜