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the opening in the face used for speaking, eating, etc.; the area inside the head behind this opening 嘴；口 
She opened her mouth to say something. 她张开嘴要说什么。 His mouth twisted into a wry smile. 他硬挤出一丝干涩的微笑。 Their mouths fell open (= they were surprised). 他们张口结舌。 Don't talk with your mouth full (= when eating). 不要一边吃一边说话。 The creature was foaming/frothing at the mouth. 这个生物口吐白沫。 Cover your mouth when you cough. 咳嗽时要捂上嘴。 The adult bird drops the worms into the mouths of the hungry chicks. 成年鸟把虫子放进饥饿的小鸡的嘴里。
Extra ExamplesTopics Bodya1Rinse your mouth thoroughly with water. 用水彻底漱口。 A cool smile played across her mouth. 她嘴角露出一丝冷笑。 A smile played around his strong mouth. 他坚毅的嘴角挂着一丝微笑。 A tight mouth was the only sign of her nerves. 只能从她紧闭的嘴巴看出她很紧张。 Good mouth care is very important when you are having chemotherapy. 接受化疗期间口腔护理非常重要。 He began to stuff his mouth with pasta. 他开始往嘴里塞意大利面。 He coughed as the blood filled his mouth. 他咳出的血弄得满嘴都是。 He covered his mouth to hide his yawn. 他捂着嘴偷偷打了个哈欠。 He wiped his greasy mouth on his sleeve. 他用袖子擦了擦油乎乎的嘴。 Her mouth curved into a smile. 她嘴角露出一丝微笑。 Her mouth suddenly set in a determined line. 她突然双唇紧闭，神态坚决。 His mouth compressed into a thin, hard line. 他紧抿双唇。 His mouth lifted in a wry smile. 他嘴角动了动，苦笑了一下。 His mouth widened to a smile. 他咧开嘴笑了。 I could taste blood in my mouth. 我能感觉到口中的血腥味。 I was so thirsty my tongue was sticking to the roof of my mouth. 我口渴极了，舌头都粘到腭壁去了。 My mouth started watering when I smelled the food. 闻到食物的香味，我开始流口水了。 Our mouths dropped open in surprise. 我们惊奇地张大了嘴。 She put her hand over her mouth to stifle the cough. 她用手捂着嘴避免咳出声。 Suddenly a hand cupped her mouth. 突然，一只手扣住了她的嘴巴。 The corners of her mouth turned up in a slight smile. 她嘴角上翘，微微笑了笑。 The hot coffee burned her mouth. 热咖啡烫了她的嘴。 There was blood trickling from the corner of his mouth. 血从他的嘴角流出来。 There were lines of tension about his mouth. 他的嘴角透着几分紧张。
Oxford Collocations Dictionaryadjective- big
- cavernous
- enormous
- …
- open
- clamp shut
- close
- …
- drop
- drop open
- fall open
- …
- sore
- ulcer
- cancer
- …
- around your mouth
- across your mouth
- in your mouth
- …
- the back of the mouth
- the roof of the mouth
- the corner of the mouth
- …
a person considered only as somebody who needs to be provided with food 需要供养的人 Now there would be another mouth to feed. 现在又多一个要吃饭的人。 The world will not be able to support all these extra hungry mouths. 这个世界养活不起这么些额外的饥民。
Extra ExamplesTwins would mean two extra mouths to feed. 双胞胎就意味着需要多养活两口人。 She has four hungry mouths to feed. 有四张饥饿的嘴等着她哺喂。
Oxford Collocations Dictionaryadjective- big
- cavernous
- enormous
- …
- open
- clamp shut
- close
- …
- drop
- drop open
- fall open
- …
- sore
- ulcer
- cancer
- …
- around your mouth
- across your mouth
- in your mouth
- …
- the back of the mouth
- the roof of the mouth
- the corner of the mouth
- …
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the place where a river joins the sea 入海口；河口 A number of industries sprang up around the mouth of the river. 河口周围涌现出许多工业。 Pelicans are found close to river mouths. 鹈鹕在河口附近被发现。
- mouth (of something)
the entrance or opening of something 入口；开口 the mouth of a cave/pit 山洞口；矿井口 Up ahead was the tunnel mouth. 再往前走就是隧道入口。
Extra ExamplesThey drew nearer to the mouth of the cave. 他们离山洞口更近了。 He shot wide of the goal mouth. 他射门偏出球门。 She wiped the mouth of the bottle before drinking. 她喝酒前擦了擦瓶口。
a particular way of speaking 讲话方式；言谈 He has a foul mouth on him! 他满嘴脏话！ Watch your mouth! (= stop saying things that are rude and/or offensive) 说话注意点儿！
(in adjectives 构成形容词 having the type or shape of mouth mentioned 有…嘴的；…口的 a wide-mouthed old woman 大嘴的老太太 a narrow-mouthed cave 洞口狭窄的山洞
(in adjectives 构成形容词 having a particular way of speaking 言谈…的；口齿…的 a rather crude-mouthed individual 言谈非常粗鲁的人
More Like This Compound adjectives for physical characteristicsCompound adjectives for physical characteristics
part of face脸的部位
person needing food需要食物的人
of river河流
entrance/opening入口；出口
way of speaking讲话方式
-mouthed…口
Word OriginOld English mūth, of Germanic origin; related to Dutch mond and German Mund, from an Indo-European root shared by Latin mentum ‘chin’.
Idioms
be all mouth
- (informal)
if you say somebody is all mouth, you mean that they talk a lot about doing something, but are, in fact, not brave enough to do it 只说不做
born with a silver spoon in your mouth
- (saying)
having rich parents 生于富裕之家；出身富裕
butter wouldn’t melt (in somebody’s mouth)
- (informal)
used to say that somebody seems to be innocent, kind, etc. when they are not really 假装一副老实样；装作天真无邪
by word of mouth
down in the mouth
unhappy and depressed 闷闷不乐；沮丧
foam at the mouth
(especially of an animal 尤指动物 to have a mass of small bubbles in and around its mouth, especially because it is sick or angry 口吐白沫（尤指因发病或暴怒） The dog started foaming at the mouth. 那条狗开始口吐白沫。
- (informal)
(of a person 人 to be very angry 大发雷霆
(straight) from the horse’s mouth
- (informal)
(of information 信息 given by somebody who is directly involved and therefore likely to be accurate 直接的；可靠的
have a big mouth
to be bad at keeping secrets 嘴不严；爱泄露秘密 to talk too much, especially about your own abilities and achievements 多嘴；吹牛；自吹自擂
somebody’s heart is in their mouth
somebody feels nervous or frightened about something 提心吊胆；心提到了嗓子眼儿 My heart was in my mouth as I opened the envelope. 我打开信封时，心都提到嗓子眼了。
keep your mouth shut
- (informal)
to not talk about something to somebody because it is a secret or because it will upset or annoy them 守口如瓶；保持缄默
leave a bad/nasty taste in the mouth
(of events or experiences 事件或经历 to make you feel upset or ashamed afterwards 使后来感到厌恶（或羞耻）；留下坏印象 The whole business left a bad taste in my mouth. 整件事让我苦不堪言。
live (from) hand to mouth
to spend all the money you earn on basic needs such as food without being able to save any money 仅够糊口度日
look a gift horse in the mouth
(usually with negatives 通常与否定词连用 to refuse or criticize something that is given to you for nothing 拒受馈赠；白送的马还看牙口；对礼物吹毛求疵 I’m never one to look a gift horse in the mouth. 我从来都不是一个吹毛求疵的人。
me and my big mouth
- (informal)
used when you realize that you have said something that you should not have said 我真多嘴；真不该说出来
melt in your mouth
(of food 食物 to be soft and very good to eat 爽滑可口；柔嫩好吃 They serve steaks that just melt in your mouth. 他们端上的牛排柔嫩可口。
out of the mouths of babes (and sucklings)
- (saying)
used when a small child has just said something that seems very wise or clever 童言有道
put your foot in your mouth
(British English also put your foot in it)
to say or do something that upsets, offends or embarrasses somebody （在语言或行为上）使人不安，冒犯别人，使人尴尬 I really put my foot in my mouth with Ella—I didn't know she'd split up with Tom. 我真的说错话了——我不知道她已经和汤姆分手了。
put your money where your mouth is
- (informal)
to support what you say by doing something practical; to show by your actions that you really mean something 用行动证明自己的话
put words into somebody’s mouth
to suggest that somebody has said something when in fact they have not 硬说某人说过某些话 He felt after the interview that the police officers had been trying to put words into his mouth. 问过话，他感觉警察逼他说出他们要他说的话。
run off at the mouth
- (North American English, informal)
to talk too much, in a way that is not sensible 夸夸其谈；信口开河；喋喋不休
shoot your mouth off (about something) (informal)
to talk about something in a way that shows that you are too proud of it 吹嘘；大吹大擂 to talk about something that is private or secret 张扬；信口乱讲（涉及隐私或秘密的事）
shut your mouth/face!
- (slang)
a rude way of telling somebody to be quiet or stop talking （粗暴地要某人停止说话）住口，闭嘴
take the bread out of somebody’s mouth
to take away somebody’s job so that they are no longer able to earn enough money to live 剥夺某人的生计；砸某人的饭碗
take the words right out of somebody’s mouth
to say what somebody else was going to say 说出…想要讲的话 I was about to say we should cancel the trip, but she took the words right out of my mouth. 我刚要说我们应该取消这次旅行，但她已抢先说了。
watch your mouth/tongue
to be careful what you say in order not to offend somebody or make them angry 说话当心；嘴上留个把门的