once 是什么意思

once的中文意思是: 一旦

once例句大全

  1. Don't say with me once, had just once.

    不要跟我说曾经,曾经只是曾经。

  2. read your first draft once aloud and once silently .

    阅读你的初稿,大声朗读次,再默读一次。

  3. Under normal use once a month, once a year overhaul .

    正常使用情况下每月检查一次,每年检修一次。

  4. Let me come at once, or at once come to me!

    让我立刻到你那儿去吧,或者你立刻到我这儿来!

  5. Just this once.

    就此一回,下不为例。

  6. Pages and page fragments are invalidated only once, rather than once per JVM.

    页面和页面碎片仅作废一次,而不是每个JVM一次。

  7. Do ( sth ) again once or more than once.

    重做一动作、重复一尝试、再次发动进攻。

  8. It's yesterday once more.

    它更加昨天是。

  9. Opportunity knocks but once.

    良机难再。

  10. Repeat once a day.

    每天重复一次。

  11. Will once be enough?

    一次就够了吗?

  12. come here at once!

    立刻到这儿来!

  13. Once every Four years.

    每隔四年。

  14. Just for once, sir!

    就办这一次好啦,先生!

  15. You can give classroom tests once every few weeks & sometimes even once a week.

    每隔几周,就要有一次当堂测试&有时甚至每周一次。

  16. Say it once more.

    再说一遍。

  17. A Simple logic, but merits the clarification in one's mind, once and once for all.

    一个简单的逻辑,却值得在脑子里澄清一次。

  18. read this word once more.

    把这个单词重读一遍。

  19. I suggest trying once more.

    我建议再试一次。

  20. Once a bully teased me.

    曾经有个恶霸欺负我。

  21. Women ovulate once a month.

    妇女每月排卵一次。

  22. I have met her once.

    我见过她一次。

  23. He once benched years ago.

    他数年前曾经当过法官。

  24. More than once.

    我们曾不止一次这样做过。

  25. He once lived in Shanghai .

    他曾经在上海住过。

  26. I shop once a month.

    我每月购物一次。

  27. I have been there once.

    我到过那儿一次。

  28. . ; Try once more.

    再试一遍。

  29. I read it once more.

    我又重新读了一过儿。

  30. You may enter only once.

    你曾经可能进入只有。

  31. Because you trusted him once.

    因为你相信过他一次了。

  32. Alright, but just this once.

    就这一回,下不为例。

  33. Once-through type steam generator

    一次通过型蒸汽发生器

  34. Don't all shout at once.

    大家不要一起同时大叫。

  35. We must start at once.

    我们必须马上出发。

  36. smallpox was once considered incurable.

    曾几何时,天花被认为是不治之症。

  37. That was once her casement.

    那是她从前的窗。

  38. I've met her only once.

    我只见过他一次。

  39. So you've contradicted your self once.

    因此你自相矛盾了一次。

  40. You once policed that area.

    你曾经在那个地区当过警察。

once中英翻译结果
出自:柯林斯词典

1
一次;一回
If something happens once, it happens one time only.
  1. I met Wilma once, briefly...

    我曾经和威尔玛有过短短的一面之缘。

  2. Since that evening I haven't once slept through the night...

    从那天晚上之后,我没有睡过一次安稳觉。

  3. Mary had only been to Manchester once before.

    玛丽以前只去过一次曼彻斯特。

2
(与后接day, week, month等的a连用)(每…)一次,(每…)一回
You use once with 'a' and words like 'day', 'week', and 'month' to indicate that something happens regularly, one time in each day, week, or month.
  1. Lung cells die and are replaced about once a week...

    肺细胞约每周新老更替一次。

  2. We arranged a special social event once a year to which we invited our major customers.

    我们每年举办一次专门的社交活动,邀请重要客户出席。

3
(与后接day, week, year等的every连用)(每隔…)一次,(每隔…)一回
You use once with 'every' and words like 'day', 'week', and 'year' to indicate that something happens a specified number of times and on a regular basis.
  1. The patient was seen for follow-up visits once every three months...

    这位病人每三个月接受一次随访就诊。

  2. My daughter comes to visit me once every fortnight.

    我女儿每两周来看我一次。

4
曾经,一度(状况如此)
If something was once true, it was true at some time in the past, but is no longer true.
  1. The culture minister once ran a theatre...

    这位文化部长曾经经营过一家剧院。

  2. I lived there once myself, before I got married...

    我结婚前曾独自在那儿住过。

  3. The house where she lives was once the village post office...

    她现在住的房子曾经是村里的邮局。

  4. My memory isn't as good as it once was.

    我的记性赶不上从前了。

  5. ...an undulating park, once lovely but now ruined by new buildings.

    曾经景色秀美、而今被新建筑糟蹋得面目全非的高低错落的庭园

5
曾经(做过某事)
If someone once did something, they did it at some time in the past.
  1. I once went camping at Lake Darling with a friend...

    我曾和一位朋友在达令湖畔露营。

  2. We once walked across London at two in the morning...

    我们曾在凌晨两点步行穿过伦敦。

  3. Diana had taken that path once.

    黛安娜曾走过那条路。

6
一旦…(就…); 一…(就…)
If something happens once another thing has happened, it happens immediately afterwards.
  1. The decision had taken about 10 seconds once he'd read a market research study...

    在他看过一份市场调研报告后大概10秒钟就作出了决定。

  2. Once customers come to rely on these systems they almost never take their business elsewhere...

    顾客一旦依赖上这些系统,几乎就不会光顾其他商家。

  3. Once inside her apartment she felt an urge to brush her teeth.

    一回到自己的公寓,她就有一种想要刷牙的冲动。

7
突然;忽然
If something happens all at once, it happens suddenly, often when you are not expecting it to happen.
  1. I feel terribly sleepy all at once...

    我突然觉得特别困。

  2. All at once there was someone knocking on the door.

    忽然有人敲门。

8
立即;马上
If you do something at once, you do it immediately.
  1. I have to go, I really must, at once...

    我得走了,我真的必须马上就走。

  2. Remove from the heat, add the parsley, toss and serve at once...

    端离炉子,加上欧芹,颠起翻面后就立刻上桌。

  3. The audience at once greeted him warmly.

    观众立即对他作出了热情的反应。

9
同时;一起
If a number of different things happen at once or all at once, they all happen at the same time.
  1. You can't be doing two things at once...

    不能一心二用。

  2. No bank could ever pay off its creditors if they all demanded their money at once...

    如果所有的储户同时要求提取存款,没有哪家银行能办得到。

  3. She seems at once feminine and able to cope in a man's world.

    她看起来既有女人味,又能在男人的世界里游刃有余。

10
就此一次;破例一次
For once is used to emphasize that something happens on this particular occasion, especially if it has never happened before, and may never happen again.
  1. For once, dad is not complaining...

    爸爸这次破天荒地没有抱怨。

  2. His smile, for once, was genuine.

    只有这一次,他真诚地笑了。

11
又一次;再次
If something happens once again or once more, it happens again.
  1. Amy picked up the hairbrush and smoothed her hair once more...

    埃米拿起发梳,再次将头发梳理整齐。

  2. Once again an official inquiry has spoken of weak management and ill-trained workers.

    官方调查又一次提到了管理不力与工人缺乏训练的问题。

12
彻底地;一劳永逸地
If something happens once and for all, it happens completely or finally.
  1. We have to resolve this matter once and for all...

    我们必须彻底解决这一问题。

  2. If we act fast, we can once and for all prevent wild animals in Britain from suffering terrible cruelty.

    如果我们迅速采取行动,就可以一劳永逸地使英国的野生动物免受残忍的虐待。

13
偶尔;间或
If something happens once in a while, it happens sometimes, but not very often.
  1. Earrings need to be taken out and cleaned once in a while.

    耳环要偶尔取出来清洗一下。

  2. Once in a while she phoned him.

    她间或会给他打个电话。

14
一两次;几次
If you have done something once or twice, you have done it a few times, but not very often.
  1. I popped my head round the door once or twice...

    我有几次头撞到了门上。

  2. Once or twice she had caught a flash of interest in William's eyes...

    有那么一两次,她发现威廉的眼睛里流露出一丝感兴趣的神色。

  3. She gazed up at him, blinking once or twice, apparently surprised at his cleverness.

    她抬头注视着他,偶尔才眨一下眼睛,显然对他的聪明才智颇为惊讶。

15
(常用于儿童故事的开头)从前,很久以前
Once upon a time is used to indicate that something happened or existed a long time ago or in an imaginary world. It is often used at the beginning of children's stories.
  1. 'Once upon a time,' he began, 'there was a man who had everything.'...

    “很久很久以前,”他开始说道,“有这么一个人,他应有尽有。”

  2. Once upon a time, asking a woman if she has a job was quite a straightforward question.

    从前,问一位女性是否有工作是个相当简单直接的问题。

once用法示例
出自:牛津词典

1
仅一次;一次
on one occasion only; one time
2
我只去过那里一次。
I've only been there once.
3
他每周洗一次汽车。
He cleans his car once a week.
4
她每半年才探望一次父母。
She only sees her parents once every six months.
5
这种事儿他仅仅干过一次。
He only did it the once .
6
曾;曾经
at some time in the past
7
我曾经见过你母亲。
I once met your mother.
8
他曾在赞比亚生活过。
He once lived in Zambia.
9
这本书曾名噪一时,但现在却无人问津。
This book was famous once, but nobody reads it today.
10
(用于否定句、疑问句和if后)曾,根本
used in negative sentences and questions, and after if to mean ‘ever’ or ‘at all’
11
他从没有主动提出过帮忙。
He never once offered to help.
12
她一旦决定干什么,谁也改变不了她的主意。
If she once decides to do something, you won't change her mind.
13
突然;骤然;忽然
suddenly
14
她突然大发脾气。
All at once she lost her temper.
15
一起;同时
all together; at the same time
16
我不能万事一把抓呀。你可急不得。
I can't do everything all at once─you'll have to be patient.
17
立即;马上
immediately; without delay
18
马上到这里来!
Come here at once!
19
同时
at the same time
20
大家不要同时讲!
Don't all speak at once!
21
我不能同时做两件事。
I can't do two things at once.
22
仅此一次(与通常情况对比而言)
on this occasion (which is in contrast to what happens usually)
23
只有这一次他按时到了。
Just for once he arrived on time.
24
难道你们就不能彼此客气哪怕一次?
Can't you be nice to each other just this once?
25
再一次;再次
one more time; another time
26
火车又一次晚点了。
Once again the train was late.
27
让我再听一遍。
Let me hear it just once more.
28
(表示一个人不能改变) 一次为…便永远是…
used to say that sb cannot change
29
一朝从艺,永为艺人。
Once an actor, always an actor.
30
最终地;最后地;彻底地;一次了结地
now and for the last time; finally or completely
31
我们需要把这事一次解决。
We need to settle this once and for all.
32
一朝被蛇咬,十年怕井绳
after an unpleasant experience you are careful to avoid sth similar
33
极少地;难得地;破天荒地
very rarely
34
偶尔地;间或
occasionally
35
一两次;几次
a few times
36
我跟她不很熟;我只见过她一两次。
I don't know her well, I've only met her once or twice.
37
侥幸难再
used to say that sb has done sth wrong or stupid again, and this time they will suffer because of it
38
你故技重施,可这次再逃不脱了。
You've tried that trick once too often.
39
(用于故事的开头)从前,很久以前
used, especially at the beginning of stories, to mean ‘a long time in the past’
40
从前,有一位美丽的公主。
Once upon a time there was a beautiful princess.
41
一…就;一旦;当…时候
as soon as; when
42
一旦钱花光了,我们就不知道该怎么办了。
We didn't know how we would cope once the money had gone.
43
你一旦下了水,就会觉得水里挺舒适。
The water is fine once you're in!
once英语释义
出自:WordNet

1
on one occasion
例子:
  1. once I ran into her

近义词: one time,in one case

2
at a previous time
例子:
  1. at one time he loved her
  2. her erstwhile writing
  3. she was a dancer once

近义词: formerly,at one time,erstwhile,erst

3
as soon as
例子:
  1. once we are home, we can rest