know

know
(past knew ; past participle known )
  1. [with clause]be aware of through observation, inquiry, or information
    了解，得知，知道
    most people know that CFCs can damage the ozone layer.
    多数人知道氯氟烃破坏臭氧层。
    I know what I'm doing.
    我知道我正在做什么。
    ■[with obj.]have knowledge or information concerning[no obj.]
    知道，懂得
    I would write to him if I knew his address.
    如果我知道他的地址我就会给他写信的。
    I know of one local who shot himself.
    我知道一个饮弹自杀的当地人。
    ■be absolutely certain or sure about something[with obj.]
    确信
    I just knew it was something I wanted to do.
    我就是确信这是我想要做的事。
    I knew it!.
    我确信！。
  2. [with obj.]have developed a relationship with (someone) through meeting and spending time with them; be familiar or friendly with
    认识，熟悉
    he knew and respected Laura.
    他认识并且尊重劳拉。
    ■have a good command of (a subject or language)
    懂得，掌握（学科，语言）
    ■recognize (someone or something)
    认出
    Isabel couldn't hear the words clearly but she knew the voice.
    伊莎贝尔听不清那些话，但她听出了那声音。
    ■be familiar or acquainted with (something)
    熟悉（某物）
    a little restaurant she knew near Leicester Square.
    她所熟悉的莱斯特广场旁边的一家小餐馆。
    ■have personal experience of (an emotion or situation)
    经历（情感，情形）
    a man who had known better times.
    经历过更好时代的人。
    ■(一般作be known as)regard or perceive as having a specified characteristic
    被认为
    he is also known as an amateur painter.
    他也被认为是一个业余画家。
    ■(一般作be known as)give (someone or something) a particular name or title
    称（某人，物）为
    the doctor was universally known as ‘Hubert’.
    这个医生被大众称为“休伯特”。
    ■(know someone/thing from)be able to distinguish one person or thing from (another)
    能区分，能识别
    you are convinced you know your own baby from any other in the world.
    你确信能够把自己的孩子和世界上别的小孩区分开来。
    French
  3. [with obj.](archaic)have sexual intercourse with (someone)
    (古)与（某人）性交
常用词组
all one knows
  1. used to emphasize the limited nature of one's knowledge concerning something
    就某人所知
    all I knew was that she was a schoolteacher.
    就我所知，她是一个教师。
    ■used to emphasize the importance or significance of the following fact or facts
    某人只知道
    all she knew was that she was cold and hungry and thirsty.
    她只知道她饥寒交迫。
and one knows it
  1. said to emphasize that someone is well aware of a fact although they might pretend otherwise
    某人自己也知道
    the Right Honourable Gentleman's priorities do not add up and he knows it.
    绅士阁下的优先权不合情理，他自己也清楚这一点。
—— as we know it
  1. as is familiar or customary in the present
    与现在一样
    apocalyptic expectations, envisaging the end of the world as we know it.
    启示录的期待，展现了我们现在所了解的世界末日。
before one knows where one is (或before one knows it)
  1. (informal)with baffling speed
    (非正式)转眼间
be in the know
  1. be aware of something known only to a few people
    知情的，知晓内幕的
    he had a tip from a friend in the know: the horse was a cert.
    她有一条从知晓内情的朋友那里得来的秘密消息： 这匹马定能赢。
be not to know
  1. have no way of being aware of
    无法知道
    you weren't to know he was about to die.
    你无法知道她快要死了。
don't I know it!
  1. (informal)used as an expression of rueful assent or agreement
    (非正式)我何尝不知道
don't you know
  1. (informal, dated)used to emphasize what one has just said or is about to say
    (非正式，旧)你也知道的
    I was, don't you know, a great motoring enthusiast in those days.
    我那时，你是知道的，疯狂热爱驾车兜风。
for all someone knows
  1. used to express the limited scope or extent of one's information
    就某人所知
    she could be dead for all I know.
    就我所知，她可能已死了。
God (或goodness 或heaven) knows
  1. used to emphasize that one does not know something
    ［用于强调自己不知道］天知道
    God knows what else they might find.
    天知道他们还能发现什么。
  2. used to emphasize the truth of a statement
    ［用于强调陈述的真实性］天也知道
    God knows, we deserve a spot of bubbly after all these years.
    天也知道，经过了这么多年我们应得一点香槟酒。
I know
  1. I agree
    我同意
    ‘It's not the same without Rosie.’ ‘I know.’.
    “缺少了罗茜就不一样了。”“我知道。”。
  2. (亦作I know what)I have a new idea or suggestion
    我有个主意，我有个建议
    I know what, let's do it now.
    我有个主意，我们现在干吧。
know best
  1. have better knowledge or more appropriate skills
    更知道，更懂得
know better than
  1. be wise or polite enough to avoid doing a particular thing
    变聪明些，不再相信，不再上当
    you ought to know better than to ask that.
    你应该变聪明些，别问此事。
know someone by sight
  1. recognize someone by their appearance without knowing their name or being so well acquainted as to talk to them
    与某人只是面熟
know different (或otherwise)
  1. be aware of information or evidence to the contrary
    知道相反的消息（或证据）
know something for a fact
  1. be aware of something that is irrefutable or beyond doubt
    确切知道
    I know for a fact that he can't speak a word of Japanese.
    我确切知道他一句日语也不会说。
know someone in the biblical sense
  1. (informal, humorous)have sexual intercourse with someone
    (非正式，幽默)与某人性交
know no bounds
  1. have no limits
    无限，没有边际
    their courage knows no bounds.
    他们有无限的勇气。
know one's own mind
  1. be decisive and certain
    有决断
know one's way around
  1. be familiar with (an area, procedure, or subject)
    熟悉（地区，领域，程序或主题）
know the ropes
  1. have experience of the appropriate procedures
    懂得诀窍，在行
know what's what
  1. (informal)be experienced and competent in a particular area
    (非正式)懂行，老练
know who's who
  1. be aware of the identity and status of each person
    知道各人的身份和地位
let it be (或make something) known
  1. ensure that people are informed about something, especially via a third party
    （尤指经由第三方）保证大家都被通知到
    [with clause]the Minister let it be known that he was not seeking reappointment.
    部长经人宣布说他不想连任。
not know from nothing
  1. (N. Amer. informal)be totally ignorant, either generally or concerning something in particular
    (北美，非正式)完全不知，（尤指对某事）一无所知
    she shakes her head while you talk, as if to say you don't know from nothing.
    你讲话的时候她在摇头，好像在说你完全无知。
not know the first thing about
  1. have not the slightest idea about (something)
    一无所知
not know that
  1. (informal)used to express one's doubts about one's ability to do something
    (非正式)［用以表示对自己能力的怀疑］不知如何
    I don't know that I can sum up my meaning on paper.
    我不知道我能否用书面形式总结出我的想法来。
not know what to do with oneself
  1. be at a loss as to know what to do, typically through boredom, embarrassment, or anxiety
    （一般因寂寞、窘迫或焦虑而）不知如何是好
not know where (或which way) to look
  1. feel great embarrassment and not know how to react
    尴尬，不知所措
not want to know
  1. (informal)refuse to react or take notice
    (非正式)不感兴趣
    they just didn't want to know when I gave my side of the story.
    至于我何时对此事作申述，他们根本不感兴趣。
what does —— know?
  1. (informal)used to indicate that someone knows nothing about the subject in question
    (非正式)［表示某人对所谈话题一无所知］某人懂什么
    what does he know about football, anyway?.
    不管怎样，他对足球懂什么？。
what do you know (about that)?
  1. (informal, chiefly N. Amer.)used as an expression of surprise
    (非正式，主北美)（表示吃惊）你看怪不怪，真想不到
wouldn't you like to know?
  1. (informal)used to express the speaker's firm intention not to reveal something in spite of a questioner's curiosity
    (非正式)［用于表示不透露决心］你别想知道
    ‘You're loaded, aren't you, Bella?’ ‘Wouldn't you like to know?’.
    “你装好子弹了，是吧，贝拉？”“就不告诉你！”。
you know
  1. (informal)used to imply that what is being referred to is known to or understood by the listener
    (非正式)［表示所指之事已被听话者理解或知道］你知道，你也清楚
    when in Rome, you know.
    在罗马的时候，你知道。
    ■used as a gap-filler in conversation
    ［用作对话中的插入语］你知道
    oh well, you know, I was wondering if you had any jobs for me.
    哦，是的，你知道，我在想你能否给我提供某种工作。
you know something (或what)?
  1. (informal)used to indicate that one is going to say something interesting or surprising
    (非正式)［用以引出有趣或惊人的话语］你知道吗
    you know what? I believed her.
    你知道吗？我相信了她。
you never know
  1. (informal)you can never be certain; it's impossible to predict
    (非正式)很难说，不可预知
派生
knowable
adjective
knower
noun
语源
  1. Old English cnāwan (earlier gecnāwan) 'recognize, identify', of Germanic origin; from an Indo-European root shared by Latin (g)noscere, Greek gignōskein, also by can and ken
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