副詞一旦; 曾經(jīng); 一次，一趟; 一倍
連詞一旦…就…; 一經(jīng)
名詞一次，一回
1. all at once : 突然, 同時；
2. at once : 立刻, 馬上；
3. once or twice : 一兩次, 幾次；
4. once upon a time : 從前；
5. once in a while : 偶爾；
6. once more : 再一次；
7. not once : 一次也沒有；
8. once and away : 徹底地, 一勞永逸地；
9. once too often : 又(多了)一次；
10. more than once : 不止一次；
11. once again : 再一次；
12. once and again : 一而再, 再三；
1. all at once : 突然, 同時；
2. at once : 立刻, 馬上；
3. once or twice : 一兩次, 幾次；
4. once upon a time : 從前；
5. once in a while : 偶爾；
6. once more : 再一次；
7. not once : 一次也沒有；
8. once and away : 徹底地, 一勞永逸地；
9. once too often : 又(多了)一次；
10. more than once : 不止一次；
11. once again : 再一次；
12. once and again : 一而再, 再三；
副詞
1. I see them once every two months.
我每兩個月與他們見一次面。
2. If the facts once become known, he will be punished.
事實(shí)一旦公開，他就要受到懲罰。
3. once什么意思
3. He once knew her, but they are no longer friends.
他以前認(rèn)識她，但他們已經(jīng)不是朋友了。
名詞
1. once
1. Once is enough for me.
對我來說一次就夠了。
連詞
1. Once you begin you must continue.
你一旦開始，便不可停下來。
就業(yè)和工作
B：Ted volunteers for the children’s hospital once a month.
特德每個月義務(wù)為兒童醫(yī)院工作一次。
A：Gee, what a nice/ kind/ wamp3-hearted guy!
哇，他可真是個（好/好/熱心的）小伙子。
生意場上
A：I would suggest that you use this material instead of that .
我建議你改用這種替代那種。
B：But that costs more .
可是那樣成本較高。
A：But you will get less waste from this .
但可以減少浪費(fèi)。
B：We‘ll try it once .
那么就試一次看看吧。
Salary-(工資)
A：Well, I’ve looked over your resume, Mr. Peepers.
哦，我看過了你的履歷表，皮伯斯先生。
B：Please, call me Ted.
請叫我特德好了。
A：Well, Ted, this is a very impressive resume. However, we do have several other applicants to finish interviewing before we can make a final decision. We’ll call you by Friday, if that’s all right.
好，特德，你的履歷表給人印象深刻，可是，在我們做出最后的決定之前我們還要面試其他幾個應(yīng)聘者。如果可以的話，我們不遲于星期五會給你打電話。
B：That’s no problem.
可以。
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A：Do you have any other questions?
你還有其他什么問題嗎？
B：Well, what kind of salary do you provide?
哦，你們公司提供的薪金待遇是怎么樣的？
A：Salary is based on experience as well as* time spent with our company.
薪金發(fā)放以經(jīng)驗(yàn)為基礎(chǔ)，同時還有工作時間長短。
once的反義詞
B：I see.
我明白。
A：Salary can be negotiated once we officially offer you the job.
正式聘用的話，薪金方面還可以再商量。
B：Sounds fine.
好的。
1. 一次：最佳外語片的提名也沒有<<色,戒>>,競爭這個獎項(xiàng)的有羅馬尼亞電影,金棕櫚獎獲獎?wù)?<四個月,三星期,兩天>>、以色列電影<<樂隊(duì)來訪>>(The Band''s Visit)、愛爾蘭電影<<一次>>(Once)和兩部法國片,故事片<<查泰萊夫人的情人>>(La
2. 曾經(jīng)：<<諜影重重3>>(The Bourne Ultimatum)成為今年截至目前好評程度僅次於<<料理鼠王>>的全面公映作品,即便算上小範(fàn)圍點(diǎn)映的愛爾蘭音樂劇情片<<曾經(jīng)>>(Once)、伊拉克戰(zhàn)爭題材紀(jì)錄長片<<一望無際>>(No End in Sight),
3. once：open network computing environment; 網(wǎng)馳平臺
4. once：online course engine; 在線課程引擎
1. 一次；一回
If something happens once, it happens one time only.
e.g. I met Wilma once, briefly...
我曾經(jīng)和威爾瑪有過短短的一面之緣。
e.g. Since that evening I haven't once slept through the night...
從那天晚上之后，我沒有睡過一次安穩(wěn)覺。
2. （與后接day, week, month等的a連用）（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.
e.g. Lung cells die and are replaced about once a week...
肺細(xì)胞約每周新老更替一次。
e.g. We arranged a special social event once a year to which we invited our major customers.
我們每年舉辦一次專門的社交活動，邀請重要客戶出席。
3. （與后接day, week, year等的every連用）（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.
e.g. The patient was seen for follow-up visits once every three months...
這位病人每三個月接受一次隨訪就診。
e.g. My daughter comes to visit me once every fortnight.
我女兒每兩周來看我一次。
4. 曾經(jīng)，一度（狀況如此）
If something was once true, it was true at some time in the past, but is no longer true.
e.g. The culture minister once ran a theatre...
這位文化部長曾經(jīng)經(jīng)營過一家劇院。
e.g. I lived there once myself, before I got married...
我結(jié)婚前曾獨(dú)自在那兒住過。
5. 曾經(jīng)（做過某事）
If someone once did something, they did it at some time in the past.
e.g. I once went camping at Lake Darling with a friend...
我曾和一位朋友在達(dá)令湖畔露營。
e.g. We once walked across London at two in the morning...
我們曾在凌晨兩點(diǎn)步行穿過倫敦。
6. 一旦…（就…); 一…（就…）
If something happens once another thing has happened, it happens immediately afterwards.
e.g. The decision had taken about 10 seconds once he'd read a market research study...
在他看過一份市場調(diào)研報告后大概10秒鐘就作出了決定。
e.g. Once customers come to rely on these systems they almost never take their business elsewhere...
顧客一旦依賴上這些系統(tǒng)，幾乎就不會光顧其他商家。
7. 突然；忽然
If something happens all at once, it happens suddenly, often when you are not expecting it to happen.
e.g. I feel terribly sleepy all at once...
我突然覺得特別困。
e.g. All at once there was someone knocking on the door.
忽然有人敲門。
8. 立即；馬上
If you do something at once, you do it immediately.
e.g. I have to go, I really must, at once...
我得走了，我真的必須馬上就走。
e.g. Remove from the heat, add the parsley, toss and serve at once...
端離爐子，加上歐芹，顛起翻面后就立刻上桌。
9. 同時；一起
If a number of different things happen at once or all at once, they all happen at the same time.
e.g. You can't be doing two things at once...
不能一心二用。
e.g. No bank could ever pay off its creditors if they all demanded their money at once...
如果所有的儲戶同時要求提取存款，沒有哪家銀行能辦得到。
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.
once是什么意思
e.g. For once, dad is not complaining...
爸爸這次破天荒地沒有抱怨。
e.g. His smile, for once, was genuine.
只有這一次，他真誠地笑了。
11. 又一次；再次
If something happens once again or once more, it happens again.
e.g. Amy picked up the hairbrush and smoothed her hair once more...
埃米拿起發(fā)梳，再次將頭發(fā)梳理整齊。
e.g. Once again an official inquiry has spoken of weak management and ill-trained workers.
官方調(diào)查又一次提到了管理不力與工人缺乏訓(xùn)練的問題。
12. 徹底地；一勞永逸地
If something happens once and for all, it happens completely or finally.
e.g. We have to resolve this matter once and for all...
我們必須徹底解決這一問題。
e.g. If we act fast, we can once and for all prevent wild animals in Britain from suffering terrible cruelty.
如果我們迅速采取行動，就可以一勞永逸地使英國的野生動物免受殘忍的虐待。
13. 偶爾；間或
If something happens once in a while, it happens sometimes, but not very often.
e.g. Earrings need to be taken out and cleaned once in a while.
耳環(huán)要偶爾取出來清洗一下。
e.g. Once in a while she phoned him.
她間或會給他打個電話。
14. 一兩次；幾次
If you have done something once or twice, you have done it a few times, but not very often.
once
e.g. I popped my head round the door once or twice...
我有幾次頭撞到了門上。
e.g. Once or twice she had caught a flash of interest in William's eyes...
有那么一兩次，她發(fā)現(xiàn)威廉的眼睛里流露出一絲感興趣的神色。
15. （常用于兒童故事的開頭）從前，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.
e.g. 'Once upon a time,' he began, 'there was a man who had everything.'...
“很久很久以前，”他開始說道，“有這么一個人，他應(yīng)有盡有?！?br /> e.g. Once upon a time, asking a woman if she has a job was quite a straightforward question.
從前，問一位女性是否有工作是個相當(dāng)簡單直接的問題。
16. once in a blue moon -> see moon