副詞不；不是；沒有；〈口〉不要網(wǎng)絡(luò)非；邏輯非；不是的
1. not all that : 不那么...(地)；
2. not a : 一個也不；
副詞
1. They refused her request not without good reason.
他們不無道理地拒絕了她的請求。
2. He will never pay, not he.
他決不會付錢的，決不會付的。
3. not是什么意思
3. She told me not to see the film.
她告訴我別去看這部電影。
4. Both houses are not white.
兩所房子不都是白色的。
5. Are you coming or not?
你來還是不來？
保險
A：It’s only a few (dollars/ times/calls every month.
每個月只要（幾元錢/幾次/打幾個電話）。
B：That’s not so bad.
那還不是很糟糕。
肯定表達
請求幫助
1. 非門：減少PCB面積,提高系統(tǒng)的可靠性. PLD的這些優(yōu)點使得PLD技術(shù)在90年代以后得到飛速的發(fā)展,同時也大大推動了EDA軟件和硬件描述語言(HDL)的進步. 在圖紙上分別添加非門(not)、輸入(input)、輸出(output)三個symbol,如圖所示:
2. not
2. not：no relation to; 無關(guān)
3. not：nordic optical telescope; 北歐光學望遠鏡
4. not：none other than; 而是
1. (與動詞連用構(gòu)成否定句)不，非，沒有
You use not with verbs to form negative statements.
e.g. The sanctions are not working the way they were intended...
制裁沒有發(fā)揮預(yù)期的作用。
e.g. I was not in Britain at the time...
當時我不在英國。
2. (構(gòu)成期望得到肯定回答的疑問句)
You use not to form questions to which you expect the answer 'yes'.
e.g. Haven't they got enough problems there already?...
難道他們那兒的問題還少嗎？
e.g. Didn't I see you at the party last week?...
我在上周的聚會上見過你，對不對？
3. (通常以 n't 的形式出現(xiàn)在問句中，用于推斷某人應(yīng)已做某事或表示驚訝)
You use not, usually in the form n't, in questions which imply that someone should have done something, or to express surprise that something is not the case.
e.g. Why didn't you do it months ago?...
幾個月以前你為什么不做呢？
e.g. Why couldn't he listen to her?...
他為什么不能聽她的呢？
4. (通常用 n't 的形式，用于肯定陳述后的附加疑問句)是嗎? 不是嗎?
You use not, usually in the form n't, in question tags after a positive statement.
e.g. 'It's a nice piece of jewellery though, isn't it?'...
“可這是一件漂亮的首飾，不是嗎?”
e.g. I've been a great husband, haven't I?...
我一直是個很不錯的丈夫，不是嗎？
5. (通常以 n't 的形式，表示禮貌的建議)
You use not, usually in the form n't, in polite suggestions.
e.g. Actually we do have a position in mind. Why don't you fill out our application?...
實際上我們的確在考慮一個職位，你先填一下我們的求職表好嗎？
e.g. Couldn't they send it by train?
他們不能用火車運過來嗎？
6. (用于表示對剛提及的單詞、詞組或從句的否定)不，沒有
You use not to represent the negative of a word, group, or clause that has just been used.
not
e.g. 'Have you found Paula?'—'I'm afraid not, Kate.'...
“你找到葆拉了嗎？”——“很遺憾，沒有，凱特?！?br /> e.g. At first I really didn't care whether he came or not.
起先我真的不在乎他是否會來。
7. (用于 all 或 every 前，表示部分否定)并非，不是
You can use not in front of 'all' or 'every' when you want to say something that applies only to some members of the group that you are talking about.
not什么意思
e.g. Not all the money, to put it mildly, has been used wisely...
說得好聽些，不是所有的錢都花得是地方。
e.g. Not every applicant had a degree.
不是所有的求職者都有學位。
8. 并非(總是…)
If something is not always the case, you mean that sometimes it is the case and sometimes it is not.
e.g. He didn't always win the arguments, but he often was right...
他并非在爭辯中總是能贏，但他經(jīng)常是對的。
e.g. She couldn't always afford a babysitter...
她并不是總能請得起臨時保姆。
9. (用于 a 或 one 前加強語氣)(一個…)也不，(一個…)也沒有
You can use not or not even in front of 'a' or 'one' to emphasize that there is none at all of what is being mentioned.
e.g. The houses are beautiful, but there's no shop, not even a pub to go into...
這些房子很漂亮，但周圍沒有商店，甚至連一個酒館都沒有。
e.g. I sent report after report. But not one word was published...
我寄了一篇又一篇的報告，但一個字都沒有發(fā)表。
10. (用于表示距離、時間或其他數(shù)量的詞前)不到，少于
You can use not in front of a word referring to a distance, length of time, or other amount to say that the actual distance, time, or amount is less than the one mentioned.
not的反義詞
e.g. The tug crossed our stern not fifty yards away...
拖船擦著我們的船尾開了過去，距離不到50碼。
e.g. ...a large crowd not ten yards away waiting for a bus...
不到10碼遠的地方有一大群等公共汽車的人
11. (用于對比真實和不真實的情況，尤用于可能使人產(chǎn)生誤解的陳述)不是
You use not when you are contrasting something that is true with something that is untrue. You use this especially to indicate that people might think that the untrue statement is true.
e.g. He has his place in the Asian team not because he is white but because he is good...
他在這支亞洲球隊中占有一席之地，不是因為他是白人，而是因為他確實出色。
e.g. Training is an investment not a cost...
培訓(xùn)是一種投資，而不是花費。
12. (用于not only，not just, not simply 等短語中，強調(diào)某事物的真實性，但不是全部事實)
You use not in expressions such as 'not only', 'not just', and 'not simply' to emphasize that something is true, but it is not the whole truth.
e.g. These movies were not only making money; they were also perceived to be original...
這些電影不僅賺錢，而且被視為具有原創(chuàng)性。
e.g. There is always a 'black market' not just in Britain but in Europe as a whole...
黑市一直存在，不只是在英國，整個歐洲也是。
13. (用于引出否定從句)并不是說，并非
You use not that to introduce a negative clause that contradicts something that the previous statement implies.
e.g. His death took me a year to get over; not that you're ever really over it...
我用一年時間慢慢接受了他去世的事實，但其實你永遠不會真正完全忘掉。
e.g. It occurred to Tom to wonder whether Jane was quite trustworthy. Not that he thought she was in any way politically active.
湯姆突然想到簡是不是值得信任，并不是說他認為簡有些熱衷于政治。
14. (用于表示強調(diào))一點不，根本沒有
Not at all is an emphatic way of saying 'No' or of agreeing that the answer to a question is 'No'.
not是什么意思
e.g. 'Sorry. I sound like Abby, don't I?' — 'No. Not at all.'...
“抱歉，我講起話來像阿比，是不是？”——“不，一點不像?！?br /> e.g. 'You don't think that you've betrayed your country.' — 'No I don't. No, not at all.'
“你認為你沒有背叛自己的國家?！薄拔覜]有，根本沒有?！?/p>
15. 不用謝;別客氣
Not at all is a polite way of acknowledging a person's thanks.
e.g. 'Thank you very much for speaking with us.' — 'Not at all.'
“非常感謝您能和我們交談?！薄安豢蜌??！?/p>
16. not half -> see half
if not -> see if
not least -> see least
not to mention -> see mention
nothing if not -> see nothing
not for nothing -> see nothing
more often than not -> see often