open

A1 CET-4 Oxf 3000 初中 FREQ #343 ★★★★★

n. 公开, 户外, 空旷 a. 开着的, 开放的, 开阔的, 营业着的, 公开的, 悬而未决的 vt. 打开, 公开, 开放 vi. 展开, 开始, 展现 [计] 打开指令; 打开语句

发音

UK /ˈəʊ.pən/
其它 /ˈɒ.pɪn/
US /ˈoʊ.pən/
AU /ˈəʉ.pən/

词形变化

opens 复数 opens open'd opened openedst openeth opening opens 三单 opening 现在分词 opened 过去式 opened 过去分词 openest openedst 过去式 openeth 三单 opened 复数 more open 比较级 opener opener 比较级 most open 最高级 openest 最高级

教材释义与例句

名词

公开;空旷;户外

outdoors

动词

开始;展现

to raise your eyelids so that you can see, or to be raised in this way

形容词

公开的;敞开的;空旷的;坦率的;营业着的

not closed, so that things, people, air etc can go in and out or be put in and out

释义与例句

n.
  1. 1.

    Open or unobstructed space; an exposed location.

    I can't believe you left the lawnmower out in the open when you knew it was going to rain this afternoon!

    Wary of hunters, the fleeing deer kept well out of the open, dodging instead from thicket to thicket.

  2. 2.

    Public knowledge or scrutiny; full view.

    We have got to bring this company's corrupt business practices into the open.

  3. 3.

    A defect in an electrical circuit preventing current from flowing.

    商务 工程 物理 电子

    The electrician found the open in the circuit after a few minutes of testing.

  4. 4.

    A sports event in which anybody can compete, especially or originally irrespective of amateur or professional status.

    the Australian Open

  5. 5.

    The act of something being opened, such as an e-mail message.

v. A1 Oxf 3000
  1. 1.

    To make or become physically unobstructed, uncovered, etc.

    To make or become accessible or clear for passage by moving from a shut position.

    不及物 及物

    Turn the doorknob to open the door.

    The door opened all by itself.

  2. 2.

    To make or become physically unobstructed, uncovered, etc.

    To make or become clear by removal of objects and obstructions, so as to allow passage, access, or visibility.

    不及物 及物

    The icebreaker opened the channel.

    The ice melted away and the channel opened.

    He opened a path through the undergrowth.

    After we left the forest, the country opened into a wide, flat plain.

  3. 3.

    To make or become physically unobstructed, uncovered, etc.

    To unseal or uncover, or become unsealed or uncovered.

    不及物 及物

    You can open your eyes now!

    Her eyes opened wide.

  4. 4.

    To make or become physically unobstructed, uncovered, etc.

    To spread; to expand into a wider or looser position.

    不及物 及物

    to open a closed fist

    to open matted cotton by separating the fibres

    to open a map, book, scroll, padlock

    The flower opened in the sunlight.

    Her arms opened in welcome.

  5. 5.

    To make or become physically unobstructed, uncovered, etc.

    To make (a bed) ready for a patient by folding back the bedcovers.

    及物
  6. 6.

    To make or become physically unobstructed, uncovered, etc.

    To reveal one's hand.

    不及物 及物 游戏

    Jeff opens his hand revealing a straight flush.

  7. 7.

    To make or become physically unobstructed, uncovered, etc.

    To move to a position allowing fluid to flow.

    不及物 及物 工程
  8. 8.

    To make or become physically unobstructed, uncovered, etc.

    To angle (a club, bat or other hitting implement) upwards and/or (for a right-hander) clockwise of straight.

    不及物 及物 体育
  9. 9.

    To cause or allow a gap to form or widen.

    不及物 及物

    Mudchester Rovers opened a sizeable lead on their rivals.

    A link opened under the strain, and the chain came apart.

  10. 10.

    To cause or allow a gap to form or widen.

    To move to a position preventing electricity from flowing.

    不及物 及物 商务 工程 物理
  11. 11.

    To make or become available for use or interaction.

    To make or become operative or available.

    不及物 及物

    He opened a secret bank account in Switzerland.

    We're opening the phone lines in ten minutes.

    Phone lines will open in ten minutes.

  12. 12.

    To make or become available for use or interaction.

    To make or become accessible to customers, clients or visitors.

    开门

    不及物 及物

    I will open the shop an hour early tomorrow.

    The summer fete was opened by the mayor.

    The shop opens at 9:00.

    The fete opened an hour late because of bad weather.

  13. 13.

    To make or become available for use or interaction.

    To make or become receptive or susceptible (to something).

    不及物 及物

    Reading this book will open you to new ideas.

    This policy will open the government to criticism.

    As he grew older, he opened to new ways of doing things.

  14. 14.

    To make or become available for use or interaction.

    To connect to a resource (a file, document, etc.) for viewing or editing.

    不及物 及物 计算机 工程 数学

    I can't open the file because someone else is editing it.

  15. 15.

    To make or become available for use or interaction.

    To turn on; to switch on.

    Please open the lights, the (electric) fan, the TV.

  16. 16.

    To start or begin.

    To start (an event or activity) as the first performer or actor.

    不及物 及物

    The show was opened by a terrible Elvis impersonator.

    Our band opened, and they came on second.

    Vermont will open elk hunting season next week.

  17. 17.

    To start or begin.

    To precede another as a performer at a concert or show.

    不及物

    Our band opened for Nirvana.

  18. 18.

    To start or begin.

    Of an event, activity etc., to start or get underway.

    不及物

    The meeting opened with a statement from the chairman.

  19. 19.

    To start or begin.

    To bring up, broach.

    及物

    I don't want to open that subject.

  20. 20.

    To start or begin.

    To enter upon, begin.

    及物

    to open a discussion

    to open fire upon an enemy

    to open trade, or correspondence

    to open a case in court, or a meeting

  21. 21.

    To start or begin.

    To start running (a program or application, especially one with a screen-based interface).

    不及物 及物 计算机 工程 数学

    Click this icon to open Microsoft Word.

  22. 22.

    To start or begin.

    To begin a side's innings as one of the first two batsmen.

    不及物 体育 游戏
  23. 23.

    To start or begin.

    To bet before any other player has in a particular betting round in a game of poker.

    不及物 游戏

    After the first two players fold, Julie opens for $5.

  24. 24.

    To make an open relationship or marriage, i.e., with possible additional relationships.

    及物
  25. 25.

    To disclose; to reveal; to interpret; to explain.

    废旧
adj. A1 Oxf 3000
  1. 1.

    Physically unobstructed, uncovered, etc.

    Able to have something pass through or along it.

    Come in – the door's open.

    The ice has cleared and the channel is open again.

  2. 2.

    Physically unobstructed, uncovered, etc.

    Not covered, sealed, etc.; having an opening or aperture showing what is inside.

    The jewellery box was lying open.

    Don't just stand there with your mouth open!

    Along the street ran an open sewer.

  3. 3.

    Physically unobstructed, uncovered, etc.

    Not physically drawn together, folded or contracted.

    She greeted them with open arms.

    The book was open at page 23.

    an open hand; an open flower; an open (loosely woven) fabric

  4. 4.

    Physically unobstructed, uncovered, etc.

    Of a space, free of objects and obstructions.

    It was a large, open room.

    Most of the site was occupied by huts, but there was an open area in the centre.

    Soon we left the forest behind and we were out in open country.

  5. 5.

    Physically unobstructed, uncovered, etc.

    Resulting from an incision, puncture or any other process by which the skin no longer protects an internal part of the body.

    医学

    an open fracture

  6. 6.

    Physically unobstructed, uncovered, etc.

    Unlocked or unlatched but not physically open.

  7. 7.

    Physically unobstructed, uncovered, etc.

    In a position allowing fluid to flow.

    工程
  8. 8.

    Physically unobstructed, uncovered, etc.

    Of a sandwich, etc.: composed of a single slice of bread with a topping.

    open sandwich

  9. 9.

    Physically unobstructed, uncovered, etc.

    Not of a quality to prevent communication, as by closing waterways, blocking roads, etc.; hence, not frosty or inclement; mild; used of the weather or the climate.

    an open winter

  10. 10.

    Able to be used or interacted with in some way.

    Available for use or operation.

    Your bank account is now open.

    Phone lines open at 10 pm.

    This is the only option open to us.

  11. 11.

    Able to be used or interacted with in some way.

    Actively conducting or prepared to conduct business.

    Banks are not open on bank holidays.

    Several new shops have opened in Market Street.

  12. 12.

    Able to be used or interacted with in some way.

    Allowing entrance to visitors or the public.

    I hereby declare this fete open.

    The school has an open day on Saturday.

  13. 13.

    Able to be used or interacted with in some way.

    Receptive.

    I am open to new ideas.

  14. 14.

    Able to be used or interacted with in some way.

    Susceptible or vulnerable (to the stated means).

    open to question; open to attack; open to criticism

  15. 15.

    Able to be used or interacted with in some way.

    In current use; connected to as a resource.

    计算机 工程 数学

    I couldn't save my changes because another user had the same file open.

  16. 16.

    Able to be used or interacted with in some way.

    Running.

    计算机 工程 数学

    You're getting short of memory because you have too many apps open.

  17. 17.

    Not hidden or restricted.

    Not concealed; overt.

    It is a blatant example of open criminality.

  18. 18.

    Not hidden or restricted.

    Of a person, not concealing their feelings, opinions, etc.; candid, ingenuous.

    Nowadays people are more open about their sexuality.

    1731-1735, Alexander Pope, Moral Essays with aspect open, shall erect his head

  19. 19.

    Not hidden or restricted.

    Public.

    He published an open letter to the governor on a full page of The New York Times.

  20. 20.

    Not hidden or restricted.

    Written or sent with the intention that it may made public or referred to at any trial, rather than by way of confidential private negotiation for a settlement.

    法律

    You will observe that this is an open letter and we reserve the right to mention it to the judge should the matter come to trial.

  21. 21.

    Not hidden or restricted.

    With open access, of open science, or both.

    We hope that all aspects of the project will be open rather than paywalled.

  22. 22.

    Not hidden or restricted.

    Made public, usable with a free licence and without proprietary components.

    计算机 教育 工程 数学
  23. 23.

    Not hidden or restricted.

    Of a tournament or competition, allowing anyone to enter, especially or originally irrespective of professional or amateur status.

    体育
  24. 24.

    Not hidden or restricted.

    Characterised by free-flowing play.

    游戏 体育

    Compared to their last match, which was a dour and defensive affair, this was a very open game.

  25. 25.

    Not completed or finalised.

    Not settled; not decided or determined; not withdrawn from consideration.

    an open question

    to keep an offer or opportunity open

  26. 26.

    Not completed or finalised.

    Not fulfilled or resolved; incomplete.

    商务

    I've got open orders for as many containers of red durum as you can get me.

  27. 27.

    Not completed or finalised.

    Not having one end joined to the other; not forming a closed loop.

    an open curve, an open circuit

  28. 28.

    Not completed or finalised.

    In a position such that a circuit is not completed, preventing electricity from flowing.

    商务 工程 物理
  29. 29.

    Not completed or finalised.

    Having different first and last vertices.

    数学
  30. 30.

    Not completed or finalised.

    Ending in a vowel; not having a coda.

    语言学
  31. 31.

    Having a free variable.

    数学 哲学
  32. 32.

    Which is part of a predefined collection of subsets of X, that defines a topological space on X.

    数学
  33. 33.

    Of a note, played without pressing the string against the fingerboard.

    音乐
  34. 34.

    Of a note, played without closing any finger-hole, key or valve.

    音乐
  35. 35.

    Uttered with a relatively wide opening of the articulating organs; said of vowels.

    语言学
  36. 36.

    Uttered, as a consonant, with the oral passage simply narrowed without closure.

    语言学
  37. 37.

    Source code of a computer program that is not within the text of a macro being generated.

    计算机 工程 数学
  38. 38.

    Having component words separated by spaces, as opposed to being joined together or hyphenated; for example, time slot as opposed to timeslot or time-slot.

  39. 39.

    Of a club, bat or other hitting implement, angled upwards and/or (for a right-hander) clockwise of straight.

    体育

词汇关系

相关短语

词源

Adjective from Middle English open, from Old English open (“open”), from Proto-West Germanic *opan, from Proto-Germanic *upanaz (“open”), from Proto-Indo-European *upo (“up from under, over”). Cognates * Scots apen (“open”) * Saterland Frisian eepen (“open”) * West Frisian iepen (“open”) * Cimbrian offe (“open”) * Dutch open (“open”) * German offen (“open”) * Vilamovian ufa, uffa (“open”) * Yiddish אָפֿן (ofn, “open”) * Danish åben (“open”) * Icelandic opinn (“open”) * Norwegian Bokmål åpen (“open”) * Norwegian Nynorsk open (“open”) * Swedish öppen (“open”) Compare also Latin supinus (“on one's back, supine”), Albanian hap (“to open”). Related to up. Verb from Middle English openen, from Old English openian (“to open”), from Proto-West Germanic *opanōn, from Proto-Germanic *upanōną (“to raise; lift; open”), from Proto-Germanic *upanaz (“open”, adjective). Cognate with Saterland Frisian eepenje (“to open”), West Frisian iepenje (“to open”), Dutch openen (“to open”), German öffnen (“to open”), Danish åbne (“to open”), Swedish öppna (“to open”), Norwegian Bokmål åpne (“to open”), Norwegian Nynorsk and Icelandic opna (“to open”). Related to English up. Noun from Middle English open (“an aperture or opening”), from the verb. In the sports sense, however, a shortening of “open competition”.

来源:wiktionary