once

  基本词汇  
[wʌns]     [wʌns]    
  • adv.一次;曾经
  • conj.一旦
  • n.一次
  • adj.曾经的
new

once是什么意思,词典释义与在线翻译:

详尽释义

adv.(副词)
  1. 一次,一回
  2. 曾,曾经,从前,昔日
  3. 同时
  4. 根本
  5. 突然,骤然,忽然
  6. 一旦
  7. 立即,马上
  8. 仅此一次(与通常情况对比而言)
  9. 最终地
conj.(连词)
  1. 一…就 ,一旦…就… ,一经...便
  2. 当…时候,每当
n.(名词)
  1. 一次,一回,一度
adj.(形容词)
  1. 从前的,以前的,曾经的
  2. 一度的

双解释义

adv.(副词)
  1. 一次 one time
  2. 曾经,昔时 at some time in the past
conj.(连词)
  1. 一旦…就 …if ever
  2. 只要…就 …as soon as
n.(名词)
  1. [S]一次,一回 the one time

行业释义

提示:各行业词典APP中含有本词条的独家正版内容,在手机上可看到更多释义内容。
once : 一度, ...
在 《会展英语词典》 中查看更多...

英英释义

Adverb:
  1. on one occasion;

    "once I ran into her"

  2. as soon as;

    "once we are home, we can rest"

  3. at a previous time;

    "at one time he loved her"
    "her erstwhile writing"
    "she was a dancer once"

once的用法和样例:

例句

用作副词 (adv.)
  1. Once or twice she looked over her shoulder at me.
    有一两次她回头看看我。
  2. I see them about once a fortnight.
    我大约两星期见他们一次。
  3. Once we lived in London.
    我们曾经住在伦敦。

常见句型

用作副词 (adv.)
  1. I have been there once.
    我到过那儿一次。
  2. I once went around the world.
    过去我周游过全球。
用作连词 (conj.)
  1. Once you begin, you must continue.
    一旦开了头,你就必须继续下去。
  2. Once you have taken the examination, you'll be able to relax.
    你一旦考过试,就可以轻松一下了。
  3. Once you have promised you must do it.
    你既已答应,就应该去做。
  4. Once inside her bedroom, she began to cry.
    一走进卧室,她就哭了。
用作名词 (n.)
  1. Once is enough for me.
    我一次就够了。
  2. She's only done it the once so don't be too angry.
    她只做过这一次,所以不要太生气。

常用短语

用作副词 (adv.)
once again
  1. 一而再,再来一次now again, as in the past

    My mother asked me once again to take great care of myself. 妈妈再三要求我多当心自己的身体。

    He told me once again to be sure to put out the light before leaving. 他曾再三叮嘱我在离开时一定要先关灯。

once and for all
  1. 一次了结地,一劳永逸地for the last time

    He will explain it fully once and for all. 他将把它充分地解释一次就此了结。

    The teacher has warned the student once and for all. 那位老师已断然警告那个学生。

    I'm telling you once and for all, if you don't stop pestering me you'll be sorry. 我这是最后一次警告你。如果你不停止纠缠我,你将来会后悔的。

once in a while
  1. 有时,偶尔sometimes, but not often

    He is as busy as a bee once in a while. 他有时也像蜜蜂一样忙碌。

    In everyday life you may have a brush with other people once in a while. 在日常生活中,你偶尔会与别人有点小摩擦。

once more
  1. 再一次now again as before

    He's back home once more. 他再一次回家了。

once or twice
  1. 几次several times; a few times

    I've been there once or twice. 那儿我去过几次了。

    I made the same mistake once or twice. 同一错误我犯了好几次。

once upon a time
  1. 从前some time ago; formerly

    Once upon a time there was a giant with two heads. 从前有个两头巨人。

用作名词 (n.)
all at once
  1. 突然suddenly

    He altered his face all at once. 他突然变了脸。

    I felt afraid all at once. 我突然间感到害怕。

  2. 同时at the same time

    You can't do everything all at once. 你不能同时做每一件事。

    How is it possible to feel love for two men all at once? 怎么可能同时爱上两个男子呢?

at once
  1. 立刻immediately

    I'm leaving for Rome at once. 我马上就去罗马。

    He offered to go at once. 他主张立刻就去。

词汇搭配

经典引文

  • Miss Trant read it through once.sssss S. Bedford

    出自:ssssJ. B. Priestley

once的详细讲解:

词语用法

conj.(连词)
  1. once用作连词时可引导时间状语从句和条件状语从句。用于前者时意为“一旦…就…”,所引导的从句多很短; 用于后者时意为“只要”,这种条件从句似带有时间条件的含意。
  2. once引导的从句中有些部分可以省略。

词义辨析

n.(名词)
at once, directly, immediately, instantly, presently, right away
这组词(组)的共同意思是“立即”“马上”。其区别在于:
1.at once主要指动作迅速,但中间多有一段距离,且at once比immediately意味更强。例如:
I'm leaving for Rome at once.我马上去罗马。
He gave orders for the work to be started at once.他下令立即开始那项工作。
2.immediately侧重指时间“紧接着”。例如:
I came immediately after I'd eaten.吃过饭我立即就来了。
Please close your books immediately and answer these questions.请立即合上书,回答这些问题。
I left immediately when the clock struck twelve.钟刚打12点我就离去了。
3.right away经常出现在美式英语中。例如:
I'll do it right away.我立即去办。
He had written down a list of things to do right away.他已写下须立即做的事情。
Don't expect them to approve of the design right away.不能期望他们马上批准这项设计。
4.instantly也是指动作迅速,但它更强调的是同时发生,中间有很短的距离或无距离。例如:
The electrician went instantly in answer to the phone call.电工师傅一接到电话马上就去了。
He was killed instantly in a car accident.在车祸中,他当场死亡。
5.directly强调“直接地”,多与“迂回绕过”相对。例如:
Whether he sailed directly across the bay or coasted round it is uncertain.他是径直驶过海湾,还是沿海岸迂回绕过的,现在还无法确知。
6.presently强调过一会再去做某事。例如:
I will do the dishes presently, but I want to finish the story first.我过一会去洗碟子,不过我想得先看完这篇故事。
at once, soon
这两个词(组)的区别是:soon表示“不久”“很快”,强调时间很短; at once表示“马上”“立刻”,强调动作随即发生。例如:
He soon became active in the class.他在班上很快就变得活跃起来。
When I heard the knock,I opened the door of the room at once.我听到敲门声马上就把房门打开了。
once as soon as
两者均为从属连词,引导时间状语从句,都表示主句的动作紧跟在从句的动作之后发生。
  • once:once除表时间外,还表示条件,一般译作“一旦......就......”。
  • 他一旦下定决心,就决不会放弃(本句不可用as soon as)。
  • Once he makes up his mind,he’ll never give it up.
  • as soon as:as soon as强调的只是时间,译作“刚......就......”或“一......就......”。
  • 我一到北京就写信给你。
  • As soon as I get to Beijing,I’ll write to you.

词源解说

  • ☆ 直接源自古英语an的e,意为一。

once的相关资料:

正版词典

once : 盎斯; une ...
在 《外研社法语词典》 中查看更多...
once : 十一 ...
在 《外研社西班牙语词典》 中查看更多...
once : 一次,仅一 ...
在 《外研社英语词典》 中查看更多...

近反义词

【同义词】

缩略词

once的相关缩略词,共有5

互动百科

  • once:片名:Once译名:曾经的唯一导演:约翰·卡尼 John Carney主演:格伦·汉萨德 Glen Hansard   卡塔·埃尔格罗瓦 Markéta Irglová once类型:剧情/音乐/浪漫…

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