動詞 know:

1. be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about
   同義詞：know, cognize, cognise
2. know how to do or perform something
   同義詞：know
3. be aware of the truth of something; have a belief or faith in something; regard as true beyond any doubt
   同義詞：know
4. be familiar or acquainted with a person or an object
   同義詞：know
5. have firsthand knowledge of states, situations, emotions, or sensations
   同義詞：know, experience, live
6. accept (someone) to be what is claimed or accept his power and authority
   同義詞：acknowledge, recognize, recognise, know
7. have fixed in the mind
   同義詞：know
8. have sexual intercourse with
   同義詞：roll in the hay, love, make out, make love, sleep with, get laid, have sex, know, do it, be intimate, have intercourse, have it away, have it off, screw, fuck, jazz, eff, hump, lie with, bed, have a go at it, bang, get it on, bonk
9. know the nature or character of
   同義詞：know
10. be able to distinguish, recognize as being different
    同義詞：know
11. perceive as familiar
    同義詞：know

形容詞 known:

1. apprehended with certainty

1. He is the most diligent student that I have ever known.
   他是我所知道的最用功的學(xué)生。
2. If we had known of your departure, we would have seen you off at the airport.
   如果我們事先知道你要離開，我們會到機(jī)場送行。
3. The result of the poll won't be known until midnight.
   投票結(jié)果要到半夜才能知道。
4. I've known that all along.
   自始至終，那件事我都知道。
5. In Chinese, a computer is popularly known as an "electrical brain", for the working process of a computer is similar to a human brain very much.
   在中文里，計算機(jī)有一個人所共知的雅號：“電腦”。這是因為計算機(jī)的工作過程與人的大腦思維過程極為相似。
6. Mrs Brown is known as a social climber.
   布朗太太是有名的趨炎附勢的人。
7. Your theory doesn't square with the known facts.
   你的說法跟已知的事實不符。
8. After chemical assay, we have known the composition of the ore.
   經(jīng)過化學(xué)分析，我們知道了礦石的構(gòu)成。

known

v.（動詞）
Past participle of know
know的過去分詞
adj.（形容詞）
Proved or generally recognized:
已知的，聞名的：已證明或普遍認(rèn)可的：
例句：
the only known case; a known authority.
唯一知道的案例；知名權(quán)威

n.（名詞）
Something that is known:
已知的事情：
例句：
In this instance, the only known is our actual profit margin.
在這種場合下，唯一能知道的事是我們實際可得的利潤