简明英汉词典

not
[nCt]
adv.

基本词义

NOT
[nCt]
[计]“非”(计算机中逻辑运算的一种)

美国传统词典[双解]

not
not
AHD:[n?t]
D.J.[n%t]
K.K.[n$t]
adv.(副词)
In no way; to no degree. Used to express negation, denial, refusal, or prohibition:
不:没有办法;到不了某一个程度。用来表示否定、拒绝或禁止:
I will not go. You may not have any.
我不会去。你不可以拿

语源

(1)

Middle English
中古英语

(2)

alteration of naught, nought * see naught
naught的变化, nought *参见 naught

用法
Care should be taken with the placement of not and other negatives in a sentence in order to avoid ambiguity. All elephants are not friendly could be taken to mean either “All elephants are unfriendly” or “Not all elephants are friendly.” Similarly, the sentence Kim didn't sleep until noon could mean either “Kim went to sleep at noon” or “Kim got up before noon.” · In formal writing the not only . . . but also construction should be used in such a way that each of its elements is followed by a construction of the same type. Instead of She not only bought a new car but a new lawnmower, write She bought not only a new car but a new lawnmower; in the second version, both not only and but also are followed by noun phrases. · In the not only construction also is often omitted when the second part of the sentence merely intensifies the first:
为避免意思模糊,在句中放置not 和其他否定词时必须小心: All elephants are not friendly 可被理解为“所有的大象都不友好”或“并不是所有的大象都友好”。 与此相似,句子Kim didn't sleep until noon 即可以被理解为“科姆中午去睡觉”或“科姆中午前起床”。 在正式写作中,not only…but also 结构应这样用: 每一个成分后都跟一个相同形式的结构。应把She not only bought a new car but a new lawnmower 写成 She bought not only a new car but a new lawnmower; 在第二个句子里,not only 和 but also 后都跟名词短语。 当第二部分只是强调第一部分时,在not only 结构里 also 通常省略:
She is not only smart but brilliant.
她不仅聪明过人而且才华横溢。
He not only wanted the diamond but wanted it desperately. See Usage Note at only
他不仅想要钻石,而且想要得要命 参见 only

现代英汉词典

not
[nRt]
adv.

(1)

(用于将词、句改为相反的意思)不
I will not pay that bill!
我不付那笔账!
Be careful not to burn yourself.
小心别烫着了。
It's a cat, not a dog.
这是猫,不是狗。
It is not what you are studying but how you study it that counts.
重要的不是你在研究什么,而是如何在进行研究。
She's clever, but her elder brother is not as clever.
她很聪明,但她哥哥没有她聪明。
Not everyone likes this book.
不是每个人都喜欢这本书。
In learning a foreign language, grammar is not everything.
学任何一种语言时,单学语法是不行的。
It's a not unwelcome piece of news.
这是一条很受欢迎的消息。

(2)

(用于代替整个短句)不
Are you coming or not?
你来还是不来?
Is she in? If not, could I speak to her sister?
她在吗?如果不在,我可以跟她姐妹说话吗?

习惯用语

not a
(用于名词前)一个也不;没有
not a breath of air
一点风也没有
‘How much did this cost?’ ‘Not a penny!’
“花多少钱买的?”“一分钱没花!”

Not at all
(对赞美或感谢的回答)别客气,没什么
‘Thanks for your trouble.’‘Not at all, I enjoyed it.’
“给您添麻烦了。”“不必客气,我乐意为你帮忙。”

not to say
几乎是;也许还;简直可以说
She sounded impolite, not to say rude.
她的话听来很不礼貌,简直可以说是粗鲁。

现代英汉综合大辞典

not
[nCt]
adv.

(1)

[用于助动词、情态动词之后, 形成否定的句子; 在口语中常简缩为n't, 如don't, can't]不, 未
He will not [won't]come.
他不能来。
I do not know (=[口]I don't know.=[古]I know not.)
我不知道。

(2)

[否定的句子、动词、短语等的省略代用语]不会, 不
Will it rain tomorrow? -I hope not.
明天会下雨吗? -我希望不会。
Is he coming? -Perhaps not.
他会来吗? -可能不会。
Is she angry? Not at all.
她生气了吗?-一点没有生气。
Right or not, it is a fact.
不管是对或错, 这是事实

(3)

[用于非谓语动词之前表示否定]不
Not knowing, I can't say.
我不知道, 所以说不出来。
You were wrong in not making a protest.
你错在没有提出抗议。
She told me not to see the film.
她告诉我别去看这部电影。

(4)

[用来加强代词的语气, 表示否定的意思](决)不会
He will never pay, not he.
他决不会付钱的, 决不会付的。
Will she come? -Not she.(=No, she won't.)
她会来吗? -她不会来。

(5)

[与 all, both, every和always 等词连用, 表示部分否定]并非, 并不是
All that glitters is not gold.
[谚]发光的东西未必都是黄金。
I don't know both of them.
我并非他们两个都认识。(只认识其中之一)
Not every student in this classroom is from China.
在这个教室里并非每个学生都是来自中国。
He is not always so sad.
他并不总是这样悲伤。

(6)

[在动词 think, suppose, believe, expect, fear, fancy, trust, hope, seem, appear等, 副词 perhaps, probably, absolutely 等和词组 be afraid 等的后面, 代表否定的从句]不会
- Can you come next week? --I'm afraid not.(= I'm afraid that I can not come.)
你下星期能来吗? --恐怕我不能来。

(7)

[用于委婉的表示方法中]
not a little
很多
not seldom
经常
not once or twice
多次

习惯用语

and what not
诸如此类

if not
不然的话, 否则

not all that
不那么...(地)

not at all

(1)

别客气

(2)

根本不

not ...but...
不是...而是

not but what[that]
[古]虽, 但

not only ... but also
不仅 ...而且 ...

not so
不是那样

not that ...
并不是

not that ... but that ...
不是(因为)...而是(因为) ...

not with it
[美俚]局外人

基本词义

NOT
[nCt]
n.
【计】“非”(计算机中逻辑运算的一种)
A AND NOT B gate A
“与”B 非门
A OR NOT B gate A
“或”B 非门 (logical)
NOT circuit
“非”(逻辑)线[电]路
NOT carry
“非”进位
NOT function
“非”功能[函数]
NOT gate
“非”门
NOT operator
求反算子

[七国语言]英汉公共大词典

not

[七国语言]英汉信息大词典

not

英汉双解计算机词典

NOT

“非”;[“反”]
A logic operator having the property that if P is a statement, then the NOT of Pis true if P is false, false if P is true. The NOT of P is often represented by P-, ~P, P, P′.
一种逻辑运算符,具有如下性质: 如果P是一个命题,则P的“非”运算,当P为真时,结果为假; 当P为假时,结果为真。P的“非”运算通常表示为P-,~P,P,P′。

美国传统词典

not
not
AHD:[n?t]
D.J.[n%t]
K.K.[n$t]
adv.
In no way; to no degree. Used to express negation, denial, refusal, or prohibition:
I will not go. You may not have any.

语源

(1)

Middle English

(2)

alteration of naught, nought * see naught

用法
Care should be taken with the placement of not and other negatives in a sentence in order to avoid ambiguity. All elephants are not friendly could be taken to mean either “All elephants are unfriendly” or “Not all elephants are friendly.” Similarly, the sentence Kim didn't sleep until noon could mean either “Kim went to sleep at noon” or “Kim got up before noon.” · In formal writing the not only . . . but also construction should be used in such a way that each of its elements is followed by a construction of the same type. Instead of She not only bought a new car but a new lawnmower, write She bought not only a new car but a new lawnmower; in the second version, both not only and but also are followed by noun phrases. · In the not only construction also is often omitted when the second part of the sentence merely intensifies the first:
She is not only smart but brilliant.
He not only wanted the diamond but wanted it desperately. See Usage Note at only

朗文英汉综合电脑词典

NOT
= NOT circuit,“非”电路

英汉电信大词典

not
n."非"

英汉地质大词典

not
n.非

英汉法学大词典

not

英汉化学大词典

not
adv.不,未,非

英汉海运大词典

not
不,否定

基本词义

not
不否定非(门)

基本词义

not

基本词义

not
不否定非(门)非

基本词义

NOT

基本词义

NOT
非(门)

英汉计算机大词典

not
adv.不(未,非;n.不未(非);n.“非“(门)

英汉机械大词典

not
n.不,“非”

英汉农牧林大词典

not
n.非,非,电算

英汉水利大词典

not
n.非,非,电算

英汉冶金大词典

not
n.非"

英汉造纸大词典

not
n.不,“非”

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