not

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柯林斯词典

not /nɒt/

1. NEG You use not with verbs to form negative statements. (与动词连用构成否定句) 不
The sanctions are not working the way they were intended. 制裁没有像他们原本打算的那样奏效。
I don't trust my father anymore. 我再也不相信我父亲了。
2. NEG You use not to form questions to which you expect the answer "yes." (用于构成期待肯定回答的疑问句) 难道不
Haven't they got enough problems there already?
难道他们那里的问题还不够多吗？
Didn't I see you at the party last week?
难道我在上周的聚会上没见到你吗？
3. NEG 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. 不
Why didn't you do it months ago?
为什么你几个月前不做呢？
Why couldn't he listen to her?
为什么他不能听她的话？
4. NEG You use not, usually in the form n't, in question tags after a positive statement. 不是吗
It's crazy, isn't it?
这真是疯了，不是吗？
I've been a great husband, haven't I?
我一直是个很不错的丈夫，不是吗？
5. NEG You use not, usually in the form n't, in polite suggestions. 不[礼貌]
Actually we do have a position in mind. Why don't you fill out our application?
实际上我们确实在考虑设一个职位。你为什么不填一下我们的申请表呢？
6. NEG You use not to represent the negative of a word, group, or clause that has just been used. (用于表示对前面出现过的单词、词组或从句的否定) 不
"Have you found Paula?"—"I'm afraid not, Kate."
“你找到葆拉了吗？”—“恐怕还没有，凯特。”
7. NEG 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. (every)(之前，表示部分否定) 并非 (所有)
Not all the money, to put it mildly, has been used wisely. 客气地讲，并非所有的钱都花得很明智。
8. NEG If something is not always the case, you mean that sometimes it is the case and sometimes it is not. 并非 (总是)
He didn't always win the arguments, but he often was right. 他并非总是在辩论中获胜，但他常常是正确的。
She couldn't always afford a babysitter. 她并非总能雇得起一名临时保姆。
9. NEG 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. (连一个) 也不[强调]
...no office, no phone, not even a shelf on which to put my meagre belongings. 没有办公室，没有电话，甚至连个摆放我寥寥无几的物品的架子也没有。
I sent report after report. But not one word was published. 我寄了一篇又一篇报告，但一个字也没有发表。
10. NEG 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. (用于表示距离、时间或其他数量的词之前) 不到[NEG amount]
The tug crossed our stern not fifty yards away. 那艘拖船在不到50码的地方与我们的船尾错过。
...a large crowd not ten yards away waiting for a bus. …不到10码远的一大群等公共汽车的人。
11. NEG 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. (用以对比真实和不真实的情况，尤用于可能会被误认为真实的陈述) 不是
He has his place in the Asian team not because he is white but because he is good. 他在亚洲队有一席之地，不是因为他是白人而是因为他很出色。
Training is an investment not a cost. 培训是一种投资而不是一种花费。
12. NEG 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. (用于)(not only##not)(，)(not just##not)(和)(not simply##not)(词组中) 不仅[强调]
These movies were not only making money; they were also perceived to be original. 这些电影不仅赚钱，它们还被认为是有创意的。
What's it going to cost us, not just in terms of money, but in terms of lives?
它将让我们付出什么代价，不仅在钱的方面，而且还在生命方面？
13. PHRASE You use not that to introduce a negative clause that contradicts something that the previous statement implies. (用于引出否定从句以与前句形成矛盾) 并非
His death took me a year to get over; not that you're ever really over it. 我用了一年的时间才从他的去世中恢复过来；不过永远也不可能真正恢复过来。
14. CONVENTION Not at all is an emphatic way of saying "No" or of agreeing that the answer to a question is "No." 一点不[强调]
"Sorry. I sound like Abby, don't I?"—"No. Not at all."
“抱歉。我听上去像阿比，是吗？”—“不，一点不像。”
15. CONVENTION Not at all is a polite way of acknowledging a person's thanks. 不用谢; 不客气[套语]
"Thank you very much for speaking with us."—"Not at all."
“非常感谢您与我们交谈。”—“不客气。”
16. not half→see half
17. if not→see if
18. more often than not→see often