I know
You say 'I know' to show that you agree with what has just been said.
'This country is so awful.'—I know, I know.'
“这个国家真糟糕。” “我知道,我知道。”
you know what I mean
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.
None of us stayed long. I mean, the atmosphere wasn't – well, you know what I mean.
我们都没久留。我是说,气氛不是–嗯,你懂我的意思。
you never know
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.
You never know, I might get lucky.
很难说,我也许会走运。
not that I know of
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.
'Is he married?'—'Not that I know of.'
“他结婚了吗?” “据我所知没有。”
you know
You use you know to emphasize or to draw attention to what you are saying.
The conditions in there are awful, you know.
你知道吗,那里的条件非常糟糕。
as we know it
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.
He planned to end the welfare system as we know it.
正如我们所知,他曾计划废除这种福利制度。
get to know someone
If you get to know someone, you find out what they are like by spending time with them.
The new neighbours were getting to know each other.
新邻居们正在逐渐彼此了解。
goodness knows , Heaven knows , God knows
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.
'Who's he?'—'God knows.'
“他是谁?” “天晓得。”
I don't know (about that)
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.
'He should quite simply resign.'—'I don't know about that.'
“他只要辞职就行了。” “我说不准。”
I don't know about you
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.
I don't know about the rest of you, but I'm hungry.
不知道你们怎么样,我可是饿了。
I don't know how , I don't know what
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.
I don't know how he could do this to his own daughter.
我真想像不出他怎么能这样对待自己的女儿。
in the know
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.
It was gratifying to be in the know about important people.
了解重要人物的内幕真令人高兴。
you don't know
You can say 'You don't know' in order to emphasize how strongly you feel about the remark you are going to make.
You don't know how good it is to speak to somebody from home.
你不知道跟家里来的人说说话感觉有多好!
knows , knowing , knew , known
If you know a fact, a piece of information, or an answer, you have it correctly in your mind.
I don't know the name of the place.
我不知道那个地方的名称。
'People like doing things for nothing.'—'I know they do.'
“人们喜欢白忙活。” “我知道,他们确实是那样。”
I don't know what happened to her husband.
我不知道她的丈夫出了什么事。
'How did he meet your mother?'—'I don't know.'
“他是怎么遇到你母亲的?” “我不知道。”
If you know someone, you are familiar with them because you have met them and talked to them before.
Gifford was a friend. I'd known him for nine years.
吉福德曾是我的一个朋友,我那时认识他已有九年。
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.
We know of the incident but have no further details.
我们听说过那个事件,但不了解更多的细节。
The president admitted that he did not know of any rebels having surrendered so far.
总统承认迄今为止他未曾听说有任何反叛分子投降。
If you know about a subject, you have studied it or taken an interest in it, and understand part or all of it.
Hire someone with experience, someone who knows about property.
聘用一位有经验并了解房地产的人。
She didn't know anything about music.
她对音乐一点都不了解。
If you know a language, you have learned it and can understand it.
It helps to know French and Creole if you want to understand some of the lyrics.
如果你想明白其中一些歌词,懂点法语和克里奥尔语是有帮助的。
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.
No matter how well you know this city, it is easy to get lost.
不论你多么熟悉这座城市,都容易迷路。
If you know how to do something, you have the necessary skills and knowledge to do it.
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疾病。
You can say that someone knows that something is happening when they become aware of it.
Then I saw a gun under the hall table so I knew that something was wrong.
当时我看到大厅的桌子下面有一支枪,就意识到出问题了。
If you know something or someone, you recognize them when you see them or hear them.
Would she know you if she saw you on the street?
如果在街上见到你,她会认出你吗?
If someone or something is known as a particular name, they are called by that name.
The disease is more commonly known as Mad Cow Disease.
此病一般都被称作“疯牛病”。
Peter and his wife Antonella (also known as Tony)
彼得和妻子安托妮拉(亦称托妮)。
If you know someone or something as a person or thing that has particular qualities, you consider that they have those qualities.
Lots of people know her as a very kind woman.
很多人都认为她是一个很善良的女人。