once的详尽释义是：adv.(副词)一次，一回曾，曾经，从前，昔日同时根本突然，骤然，忽然一旦立即，马上仅此一次（与通常情况对比而言）最终地。once的例句是用作副词(adv.)Once or twice she looked over her shoulder at me.有一两次她回头看看我。once的词语用法是conj.(连词)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。
一、详尽释义点此查看once的详细内容
adv.(副词)- 一次，一回
- 曾，曾经，从前，昔日
- 同时
- 根本
- 突然，骤然，忽然
- 一旦
- 立即，马上
- 仅此一次（与通常情况对比而言）
- 最终地
conj.(连词)- 一…就 ，一旦…就… ，一经...便
- 当…时候，每当
n.(名词)- 一次，一回，一度
adj.(形容词)- 从前的，以前的，曾经的
- 一度的
二、双解释义
adv.(副词)- 一次 one time
- 曾经,昔时 at some time in the past
conj.(连词)- 一旦…就 …if ever
- 只要…就 …as soon as
n.(名词)- [S]一次,一回 the one time
三、英英释义
Adverb:- on one occasion;
"once I ran into her"
- as soon as;
"once we are home, we can rest"
- at a previous time;
"at one time he loved her"
"her erstwhile writing"
"she was a dancer once"
四、例句
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。
五、常用短语
用作副词(adv.)
- once again
一而再,再来一次now again, as in the past
- once and for all
一次了结地,一劳永逸地for the last time
- once in a while
有时,偶尔sometimes, but not often
- once more
再一次now again as before
- once or twice
几次several times; a few times
- once upon a time
从前some time ago; formerly
用作名词(n.)
- all at once
同时at the same time
- at once
立刻immediately
六、词汇搭配
七、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除表时间外，还表示条件，一般译作“一旦......就......”。
- as soon as强调的只是时间，译作“刚......就......”或“一......就......”。
once的相关近义词
at one time
once的相关临近词
oncology、onboard、Oncet、oncer、Onceja、Oncete、Onceriu、Onceanu、Oncescu、onceover、once once、once more
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