动词知道; 了解; 认识; 确信
名词知情
1. in the know : ad. 知内情的；
2. you know : 你知道；
1. in the know : ad. 知内情的；
2. you know : 你知道；
及物动词
1. He knows five languages.
他精通五种语言。
2. I know him very well.
我很熟悉他。
3. She has known both grief and happiness.
悲伤、喜悦她都经历过。
1. know的反义词
1. Goodness knows!
天晓得！谁知道！
约定
交通
询问
know
A：You know what I’m talking about?
你明白我说的意思吧？
B：I think so.
我想我明白了。
1. 知到：我们承认(recognize)台湾是中国大陆的一部份,中华人民共和国为一主权不可分割之国家我们认知到(know)台湾是中国大陆的一部份我们理解到(realize)台湾是中国大陆的一部份
1. 知道；知悉；了解
If you know a fact, a piece of information, or an answer, you have it correctly in your mind.
e.g. I don't know the name of the place...
我不知道那个地方的名字。
e.g. I know that you led a rifle platoon during the Second World War...
我知道你在二战期间率领一个步枪排。
2. 熟识；认识
If you know someone, you are familiar with them because you have met them and talked to them before.
e.g. Gifford was a friend. I'd known him for nine years...
吉福德是我的一位朋友。我和他认识9年了。
e.g. Do you two know each other?...
你们俩互相认识吗？
3. 听说过；略有耳闻
If you say that you know of something, you mean that you have heard about it but you do not necessarily have a lot of information about it.
know的翻译
e.g. We know of the incident but have no further details...
我们听说过这件事，但对详情不是很清楚。
e.g. The president admitted that he did not know of any rebels having surrendered so far...
总统承认据他所知迄今为止还没有反叛者投降。
4. 了解，掌握（某一学科）
If you know about a subject, you have studied it or taken an interest in it, and understand part or all of it.
e.g. Hire someone with experience, someone who knows about real estate...
雇佣有经验、了解房地产业的人。
e.g. She didn't know anything about music but she liked to sing.
虽然她对音乐一无所知，但却爱唱歌。
5. 学会，掌握（语言）
If you know a language, you have learned it and can understand it.
e.g. It helps to know French and Creole if you want to understand some of the lyrics...
如果你想读懂一些抒情诗，学点法语和克里奥尔语是有帮助的。
e.g. Rachel already knows as many words in German as she does in English...
雷切尔掌握的德语词汇已经和她掌握的英语词汇一样多了。
6. 熟悉；了解
If you know something such as a place, a work of art, or an idea, you have visited it, seen it, read it, or heard about it, and so you are familiar with it.
e.g. No matter how well you know Paris, it is easy to get lost...
不管你对巴黎多么熟悉，也很容易迷路。
e.g. I don't know the play, I've just come to see it.
我不了解这部剧，只是来看看。
7. 会；能
If you know how to do something, you have the necessary skills and knowledge to do it.
know
e.g. The health authorities now know how to deal with the disease...
卫生部门现在知道如何对付这种病了。
e.g. We know what to do to make it work.
我们知道如何让它起作用。
8. 意识到；觉察到
You can say that someone knows that something is happening when they become aware of it.
e.g. Then I saw a gun under the hall table so I knew that something was wrong...
后来我看到大厅的桌子下有一把枪，我就意识到有些不对劲儿。
e.g. The first I knew about it was when I woke up in the ambulance.
当我从救护车中苏醒过来时才知道发生了什么事。
9. 认出；辨认出
If you know something or someone, you recognize them when you see them or hear them.
e.g. Would she know you if she saw you on the street?...
如果她在大街上看到你，能认出你吗？
e.g. I thought I knew the voice.
我觉得在哪里听过这声音。
10. 称为；叫做
If someone or something is known as a particular name, they are called by that name.
e.g. The disease is more commonly known as Mad Cow Disease...
这种疾病更通俗的名称是疯牛病。
e.g. He was born as John Birks Gillespie, but everyone knew him as Dizzy...
他本名为约翰·伯克斯·吉莱斯皮，但人人都叫他“小迷糊”。
11. 认为…是；把…看作是
If you know someone or something as a person or thing that has particular qualities, you consider that they have those qualities.
know是什么意思
e.g. Lots of people know her as a very kind woman...
很多人认为她是个非常善良的女人。
e.g. We know them as inaccurate and misleading property descriptions...
我们认为对性状的这些描述是不准确的，且会使人产生误解。
12. （因某工作或角色）认识
If you know someone as a person with a particular job or role, you are familiar with them in that job or role, rather than in any other.
e.g. Most of us know her as the woman who used to present the television news...
我们大多数人认识她是因为她曾主持过电视新闻节目。
e.g. The soldiers — all of whom we knew as neighbours — stood around pointing guns at us.
那些士兵——我们都视之为邻居的人——站在四周用枪指着我们。
13. see also: knowing;known
14. 现行的；我们熟悉的；我们熟知的
If you talk about a thing or system as we know it, you are referring to the form in which it exists now and which is familiar to most people.
e.g. He planned to end the welfare system as we know it.
他计划终止现行的福利制度。
e.g. ...those values of our culture that are essential to civilisation as we know it.
我们文化中那些构成我们所熟悉的文明社会之根基的价值观
15. （花时间）了解
If you get to know someone, you find out what they are like by spending time with them.
e.g. The new neighbours were getting to know each other...
新邻居之间正在互相了解。
e.g. I'd really like to see you again and get to know you better.
我很愿意再次见到你并且更多地了解你。
16. 谁知道；天晓得
People use expressions such as goodness knows ,Heaven knows, and God knows when they do not know something and want to suggest that nobody could possibly know it.
e.g. 'Who's he?' — 'God knows.'
“他是谁？”——“天晓得。”
e.g. Old Gunga spoke God knows how many languages...
老贡嘎会说很多种语言，天晓得有多少种。
17. （表示同意）我理解，我有同感，我知道
You say 'I know' to show that you agree with what has just been said.
e.g. 'This country is so awful.' — 'I know, I know.'
“这个国家太糟糕了。”——“的确是，的确是。”
18. （表示接受）我知道
You say 'I know' to show that you accept that something is true, but think that it is not very important or relevant.
e.g. 'There are trains straight from Cambridge.' — 'I know, but it's no quicker.'
“有直接从剑桥开出的列车。”——“我知道，但也不快。”
19. （表示同情和理解）我理解，我知道
You use 'I know' to express sympathy and understanding towards someone.
e.g. I'm sorry, George. I know how you feel...
我很遗憾，乔治。我理解你的感受。
e.g. I know what you're going through.
我知道你正在经受什么样的煎熬。
20. 不知道，不认为（表示不完全同意或不认为是真的）
You can use I don't know to indicate that you do not completely agree with something or do not really think that it is true.
e.g. 'He should quite simply resign.' — 'I don't know about that.'
“他就该辞职。”——“我不知道。”
e.g. I don't know that it's made the decision any easier.
我不认为这对作出决定有丝毫帮助。
21. 我不知道你（们）怎么想（表示将表达自己想法并想知道他人的看法）
You can say 'I don't know about you' to indicate that you are going to give your own opinion about something and you want to find out if someone else feels the same.
e.g. I don't know about the rest of you, but I'm hungry...
我不知道你们怎么样，但我是饿了。
e.g. I don't know about you, but I've had just about enough of this.
我不知道你怎么想，但我已经受够了。
22. （表示批评某人的行为）真想不到，真不知道
You use I don't know in expressions which indicate criticism of someone's behaviour. For example, if you say that you do not know how someone can do something, you mean that you cannot understand or accept them doing it.
e.g. I don't know how he could do this to his own daughter...
真想不到他竟对自己的女儿这样。
e.g. I don't know how you can say that...
真想不到你竟说那话。
23. 我要是知道就好了；我根本不知道
People sometimes use expressions such as I'm blessed if I know or damned if I know to emphasize the fact that they do not know something.
know在线翻译
e.g. 'What was that all about?' — 'Damned if I know.'
“那都是关于什么的？”——“我要知道就好了。”
e.g. I'm damned if I know what plans he has in that direction.
我压根不知道他在那方面有什么计划。
24. 知情；（尤指）熟悉内幕，掌握内情
If you are in the know about something, especially something that is not known about or understood by many people, you have information about it.
know的反义词
e.g. It was gratifying to be in the know about important people...
了解重要人物的一些内幕真令人高兴。
e.g. He takes crucial decisions without consulting people in the know.
他没有咨询相关知情人士就作了重要的决定。
25. （表示所说的话对方理解）你是知道的，你知道我的意思
You can use expressions such as you know what I mean and if you know what I mean to suggest that the person listening to you understands what you are trying to say, and so you do not have to explain any more.
e.g. None of us stayed long. I mean, the atmosphere wasn't — well, you know what I mean...
我们都没呆太久。我的意思是，气氛并不是——唔，你知道我的意思。
e.g. She was a bit stuck up, know what I mean?
她有点自命不凡，你明白我的意思吧?
26. （指可能会发生好事）很难说，很难预料
You say 'You never know' or 'One never knows' to indicate that it is not definite or certain what will happen in the future, and to suggest that there is some hope that things will turn out well.
e.g. You never know, I might get lucky...
很难说，我也许会交好运呢。
e.g. There might be an even bigger one — I doubt it, but you never know.
可能还有个比这还要大的——我觉得有点悬，但也很难说。
27. 据我所知没有
You say 'Not that I know of' when someone has asked you whether or not something is true and you think the answer is 'no' but you cannot be sure because you do not know all the facts.
e.g. 'Is he married?' — 'Not that I know of.'
“他结婚了吗？”——“据我所知没有。”
28. 我怎么知道；我不知道
You can say 'How was I to know?', or in British English 'I wasn't to know', to mean that you cannot be blamed or criticized for something you did, because you did not have enough information to realize that it was wrong.
know在线翻译
e.g. How was I to know you'd return so suddenly?...
我怎么知道你会这么突然就回来?
e.g. You weren't to know — in fact, I think I'm the only person who does know.
你不会知道——实际上，我想我是唯一真正知道的人。
29. （某人）知道什么，懂什么（表示其没有资格评论）
You can use expressions such as What does she know? and What do they know? when you think that someone has no right to comment on a situation because they do not understand it.
e.g. Don't listen to him, what does he know?...
别听他的，他知道什么？
e.g. I always felt his attitude was, 'What do you know about it?'
我感觉他总是那种“你懂什么？”的态度。
30. （表示惊讶）你看怪不怪，真没想到
People sometimes say 'What do you know!' when they are very surprised about something.
e.g. Well, what do you know!
哎呀，真没想到！
31. （加强语气或引起注意）你要知道
You use you know to emphasize or to draw attention to what you are saying.
e.g. The conditions in there are awful, you know...
你要知道，那里的条件很艰苦。
e.g. You know, it does worry me.
你要知道，这实在让我担心。
32. （表示不确定要说的话或考虑接着说什么）你知道
People use you know when they are uncertain about what they are saying or what they are going to say next.
e.g. He's generous and, you know, very nice, very polite...
他很大方而且，你知道，很友善，很有礼貌。
e.g. I thought I'd, you know, have a chat with you.
我想我应该，呃，和你谈谈。
33. （表示进一步解释）你是知道的，你难道不知道
You use you know when you are trying to explain more clearly what you mean, by referring to something that the person you are talking to knows about.
e.g. Wear the white dress, you know, the one with all the black embroidery.
穿那件白裙，你知道的，上面有黑色刺绣的那件。
34. （加强语气）你不知道，你都想不到
You can say 'You don't know' in order to emphasize how strongly you feel about the remark you are going to make.
e.g. You don't know how good it is to speak to somebody from home.
你不知道和家乡来的人说说话感觉有多好。
35. to know something backwards -> see backwards
to know best -> see best
to know better -> see better
to know no bounds -> see bound
to know what side your bread is buttered on -> see butter
to know something for a fact -> see fact
as far as I know -> see far
not to know the first thing about something -> see first
to know full well -> see full
to let someone know -> see let
not to know the meaning of the word -> see meaning
to know your own mind -> see mind
for reasons best known to oneself -> see reason
to know the ropes -> see rope