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once单词基本解析：

adv.一次; 每一次; 每隔…一次; 曾经conj. 一…就
adv.一次, 曾经 conj.一旦n.一次adj.曾经的
adv.一次，一趟；一倍；曾经；一旦

once变化用词：

once英英释义：

Adjective

1. belonging to some prior time;

"erstwhile friend"

"our former glory"

"the once capital of the state"

"her quondam lover"

副词 once:

on one occasion

同义词：one time, in one case

as soon as

at a previous time;

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

once[ wʌns ]adv.on one occasion

"once I ran into her"

同义词：one timein one case

as soon as

"once we are home, we can rest"

at a previous time

"she was a dancer once"

同义词：formerlyat one timeerstwhileerst

once中文词源：

once 一次 来自one,一，-ce,副词后缀。

once用法和例句：

I met Wilma once, briefly...

我曾经和威尔玛有过短短的一面之缘。

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。

Lung cells die and are replaced about once a week...

肺细胞约每周新老更替一次。

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。

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。

My daughter comes to visit me once every fortnight.

我女儿每两周来看我一次。

The culture minister once ran a theatre...

这位文化部长曾经经营过一家剧院。

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

我结婚前曾独自在那儿住过。

I once went camping at Lake Darling with a friend...

我曾和一位朋友在达令湖畔露营。

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

我们曾在凌晨两点步行穿过伦敦。

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。

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。

I feel terribly sleepy all at once...

我突然觉得特别困。

All at once there was someone knocking on the door.

忽然有人敲门。

I have to go, I really must, at once...

我得走了，我真的必须马上就走。

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。

You can't be doing two things at once...

不能一心二用。

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。

For once, dad is not complaining...

爸爸这次破天荒地没有抱怨。

His smile, for once, was genuine.

只有这一次，他真诚地笑了。

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。

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。

We have to resolve this matter once and for all...

我们必须彻底解决这一问题。

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。

Earrings need to be taken out and cleaned once in a while.

耳环要偶尔取出来清洗一下。

Once in a while she phoned him.

她间或会给他打个电话。

I popped my head round the door once or twice...

我有几次头撞到了门上。

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。

'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。”

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

If a man once fall, all will tread on him.

[谚]人倒众人踩。

We only live once, but if we work it right, once is enough.

[谚]年华没虚度，一生也足矣。

Questions and problems that were once taboo are now discussed openly.

一度视为犯忌的许多问题现在可以公开谈论了。

The new job was a bit daunting at first but it was all right once I'd got my eye in.

一开始，那个新工作有点使人灰心丧气，但是一旦我获得了需要的能力，也就没什么了。

Once he's made up his mind, he never budges.

一旦下了决心，他就毫不动摇。

Once you have learn Spanish, you will find Italian easy.

一旦你学会了西班牙语，你就会觉得意大利语容易学了。

Making an omelette is easy once you've got the knack (of it).

一旦你掌握了煎蛋饼的技巧，做起来就很容易了。

Once installed, this heater operates automatically.

一旦安装好以后，这加热器就会自动地运行。

Once you begin, you must continue.

一旦开始，你就得继续。

Everything was to be fine and dandy once Peter started his new job.

一旦彼得有了新工作，一切都会好的。

The job won't take long to do when we once get at it.

一旦我们着手干起来。这件工作不需要很多时间就可做好。

He loves holding forth on any subject once he has an audience.

不管是什麽问题，只要有人听，他就爱大发议论。

Don't try to do everything at once; take it a bit at a time.

不要什麽事情都一块儿干，要一次做一点儿。

The Rubicon once crossed, they set to work with a will.

事已定局，他们就起劲地干了起来。

Once the affair became public, he was persecuted by the press.

事情公开後，他便受到新闻界的纠缠。

It was once a common belief that the sun moved round the earth.

人们曾经普遍地认为太阳环绕地球运转。

Once upon a time there was a princess.

从前有一个公主。

Once upon a time, there was an old man living in a small village.

从前，在一个小村庄里住着一位老人。

Once upon a time, there lived a princess who was very beautiful.

从前，有一位非常美丽的公主。

Once he became rich, he threw aside his old friends.

他一发财就不再理会他的老朋友了。

He made out of the cabin at once on hearing the siren.

他一听到汽笛声就立即走出船舱。

He was once the great white hope of the Labour Party.

他一度是工党中深孚众望的人。

Once he achieved power he showed (himself in) his true colours.

他一掌了权就露出了本来面目。

Once his decision is made, there will be no going back.

他一旦做出决定，就没法回头了。

Once he has set his mind on a course of action he is not to be talked out of it.

他一旦决定了他的行动方针，就没有人能说服他改变决定。

Once he took the vow his loyalty never wavered.

他一旦宣了誓，他就一直忠贞不渝。

Once he began to tell his adventures, it's hard to switch him off.

他一旦开始讲自己的冒险经历，就很难阻止他。

Once he made a promise, he would never fall back.

他一是答应了就决不会食言。

They had an affair once, but that's ancient history now.

他们曾经有过一段暧昧关系，但现在那已成为遥远的过去了。

They get together once a year at Christmas time.

他们每年圣诞节时聚会一次。

Even after meeting only once, they felt a kinship.

他们虽然只见了一面，但已是一见如故了。

He wept a few crocodile tears over his wife's death and then go married again at once.

他假惺惺地为妻子的死掉了几滴眼泪，然后，很快又结婚了。

Once again he went back on his comrades.

他再次背弃了他的同志们。

He sighed once or twice and then went out without a word while I was still speaking.

他叹了几口气，然后一言不发地走了出去，尽管当时我还在讲话。

He likes to hit the bottle once in a while.

他喜欢偶尔喝得酩酊大醉。

He exceeded the speed limit once too often and was fined￡10.

他因超速次数太多而被罚款10英镑。

He'd let me down more than once so the next time he asked me for a favour I gave him the brush-off.

他已不止一次难为我，因此下次他求我帮助时，我也让他碰碰钉子。

Once he gets a drink in his hand he's here for ever and ever.

他手里一有了酒就永远也动不了地方了。

Once he opens his mouth, he never stops.

他打开话匣子就没个完。

He once served in diplomatic service.

他曾一度干外交工作。

He was a great singer once but now he's had his day.

他曾是个红歌星，但现在风华已去。

He once did me such an unscrupulous shot in the eye.

他曾经如此肆无忌惮地恶意中伤过我。

Once a very rich man, he is now down and out.

他曾经很富，现在却贫困潦倒、一无所有。

Once he swam the English Channel.

他有一次横渡了英吉利海峡。

While reading he looked out of the window once in a while.

他正在读书，有时还朝窗外看看。

His pay isn't much to take home once it has had tax and insurance payments docked off.

他的工资一经扣除了所得税和保险金，能拿回家的也就不多了。

Once a week his room was done out.

他的房间每星期打扫一次。

He stopped playing the piano at once.

他立刻停止了弹钢琴。

At once he slew him and set Io free.

他立刻杀死了阿尔戈斯，放掉了伊俄。

He fell in with my views at once.

他马上就同意了我的观点。

Once the price had been agreed, a deal was quickly concluded.

价格一经商定，交易很快就达成了。

You'll like her once you get to know her.

你一旦了解她，就喜欢她了。

You can't both use the bike at once you'll have to take turns.

你们不能两人同时用这辆自行车--得轮流使用。

You must set about your work at once.

你必须立即开始工作。

If you see anything suspicious, inform the police at once.

你要是看到什么可疑的东西就马上通知警察。

A book worth reading once is worth reading time and time again.

值得一看的书值得一看再看。

Once in a while he goes with us to the movies on Saturday night.

偶尔在星期六晚上他同我们一道去看电影。

The doctor came at once in answer to my phone call.

医生一接到我的电话立刻就来了。

I have seen this happen more than once.

发生这种事我屡见不鲜。

Just for once he arrived on time.

只有这次他是按时到了。

So many arrived at once that I lost count (of them).

同时来了这麽多，我数不清了。

It is a physical impossibility to be in two places at once.

同时身处两地在自然法则上是不可能的。

Let's get this right once and for all.

咱们把这个问题彻底弄清楚吧。

Let's start at once and have done with it.

咱们马上就开始吧，干完就完了。

People broke into cheers at once when they heard the good news.

喜讯传来，人们顿时欢呼起来。

In the ordinary course of events, I visit her once a week.

在一般情况下，我每周去看她一次。

People flocked to see for themselves the marvel of green paddy flourishing on the once barren desert land.

在从前贫瘠荒芜的土地上，翠绿的稻秧茁壮成长。人们成群结队前来亲眼观看这个奇迹。

If you put too much coal on the fire at once you'll smother it.

在火上一下子添上很多煤，反而能把火闷死。

It was a bit choppy on the cruise but I was all right once I found my sea legs.

在航游中有点风浪，但一旦我习惯于坐船旅行我就没什么问题了。

The earth turns (ie rotates) on its axis once every 24 hours.

地球每24小时自转一圈。

The dustman comes once a week to collect the rubbish.

垃圾工每周来收一次垃圾。

The Christians once had abidance in the holy hill of Palestine.

基督徒昔时居住于巴勒斯坦的圣山上。

In summer we mow our lawn once a week.

夏天我们一周给草坪刈草一次。

Everyone begin shout at once and the meeting break up in disorder.

大家一下子全都喊叫起来，会议秩序大乱而被迫中断。

The British Empire once covered large parts of the world.

大英帝国曾经占有过世界上的大片地方。

Once he had made up his mind, he went the whole hog.

她一旦下定决心，就会干到底。

She desires you to come/that you come at once.

她希望你立即来。

She loved me once, but that's all ancient history now.

她曾经爱过我，但现在已成往事。

She once ruled over a vast empire.

她曾统治过一个版图辽阔的帝国。

She goes to see her parents in Wales once every six months.

她每半年回威尔士看父母一次。

用作副词(adv.)

Once or twice she looked over her shoulder at me.
有一两次她回头看看我。

She had not once spoken to him all the evening.
整整一晚上,她都没有跟他讲过一次话。

I see them about once a fortnight.
我大约两星期见他们一次。

Once we lived in London.
我们曾经住在伦敦。

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