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TOEFL IELTS BNC: 2123 COCA: 3190
extension
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noun /ɪkˈstenʃ(ə)n/
singularextension
pluralextensions
  1. 1
    [C] an extra room or rooms added to a building （建筑物）扩建的部分

    We are building an extension on the back of our house. 我们正在屋后进行扩建。

    extension to :

    He has applied for permission to build a single-storey extension to his house. 他已申请许可在他的房子里扩建一层。

     Synonyms and related words
    Miscellaneous rooms: airlock, antechamber, anteroom...
    1. a.
      a part of a road or railway line added to the existing one （公路或铁路的）延长部分

      a proposed motorway extension 拟议中的高速公路的延长路段

       Synonyms and related words
      Parts of roads and road systems: bend, black spot, bus lane...
       Synonyms and related words
      Parts of railway and tram systems: artery, branch line, buffer...
  2. 2
    [C] a telephone line that is one of several lines coming from a main line （电话）分机

    What's your extension? 你的电话分机号是多少？

    I'm on extension 334. 我的分机号是334。

    a new extension number 新的分机号

     Synonyms and related words
    Telephones and telecommunication equipment: 3G, 4G, answering machine...
  3. 3
    [C] education extra time that you are given to finish a piece of work, especially at college or university （尤指学院或大学中为完成作业所给的）延长的时间，放宽的期限
    extension on :

    I'm going to ask for an extension on this essay. 我打算请求延期交这篇文章。

     Synonyms and related words
    University and school work and objects found in the classroom: all-nighter, blackboard, blue book...
    1. a.
      extra time that you are given to pay money that you owe （还款的）延长期限
      extension on :

      Will the bank give you an extension on the loan? 银行会给你延长贷款期限吗？

       Synonyms and related words
      Relating to borrowing money and owing money: borrowing, borrowing powers, call it quits...
    2. b.
      extra time that you are given to use a particular legal document or right （法律文书或权利的）延期

      a visa extension 签证的延期

      extension to :

      Brady wants a two-year extension to his contract. 布雷迪想将他的合同延长两年。

       Synonyms and related words
      General periods of time: a clear run, a page in something's history, block...
    3. c.
      extra time that a shop, business, or bar is allowed to stay open （营业时间的）延长

      There was a bar extension until midnight. 酒吧延时营业至午夜。

      extension to :

      Local shops have been granted an extension to opening hours. 当地商店已经被允许延长营业时间。

       Synonyms and related words
      General periods of time: a clear run, a page in something's history, block...
  4. 4
    [C] something that you add to a long thin object to make it able to reach somewhere 延长物

    This lead isn't long enough – do you have an extension? 这根导线不够长，你有延长线吗？

     Synonyms and related words
    The outer parts of objects or spaces: apex, back, back end...
    1. a.

      extensions

      [plural] long pieces of artificial hair that can be fastened to someone's hair to make it look longer 假发
       Synonyms and related words
      Artificial hair: extensions, fright wig, hairpiece...
  5. 5
    [C] something that develops from a particular custom, activity, idea etc （习俗、活动、想法等的）发展，扩展
    extension of :

    Business entertainment seems a natural extension of Japan's gift-giving culture. 生意上的宴请招待似乎是由日本的送礼文化自然发展而来的。

    He sees local history as an extension of family history. 他把地方史看作是家族史的延伸。

     Synonyms and related words
    General words for results and outcomes: result, outcome, influence...
  6. 6
    [U] formal the action of stretching part of your body （身体某个部分的）伸展

    His leg was now capable of full extension. 他的腿现在能够完全伸展开了。

     Synonyms and related words
    To move your limbs and appendages: reach out, reach, kick...
  7. 7
    [singular/uncountable] an increase in the power of something （权力的）扩张
    extension of :

    the further extension of state control 国家控制权的进一步扩张

     Synonyms and related words
    Rates of increase and the process of increasing: uptick, increase, growth...
  8. 8
    [C] computing the last part of the name of a computer file. For example, ‘exe' and ‘doc' are extensions. （计算机文件的）扩展名（如EXE和DOC）
     Synonyms and related words
    Computer files and documents and collections of computer data: access profile, archive, ASCII file...
  9. 9
    [U] education in the UK, a system in which students can take courses at a university without being full-time students （英国大学为非全日制学生开设课程的）进修部

    courses provided through university extension 大学进修部开设的课程

     Synonyms and related words
    Courses of study: access course, apprenticeship, articles...
  10. From our crowdsourced Open Dictionary
    10
    an informal educational process directed toward the rural population

    Extension is central to realizing the potential of agricultural innovation.

    Submitted by Güneş Aydoğan from Turkey on 08/06/2017
     

phrases

TOEFL IELTS BNC: 2123 COCA: 3190
extension

noun¹

 1 (BrE) part added to a building擴建部份  ➡ see also addition ADJECTIVE | VERB + EXTENSION | PREPOSITION ADJECTIVE➤planned, proposed計劃的擴建部份；提議的擴建部份▸➤home, kitchen住宅延伸部份；廚房延伸部份▸➤one-storey, two-storey, etc.一層、兩層等擴建部份VERB + EXTENSION➤add, build增加延伸部份；加蓋延伸部份PREPOSITION➤extension to對⋯的擴建◇They're building an extension to their house.他們正在擴建自家的房屋。
extension

noun²

 2extra time延長的時間ADJECTIVE | VERB + EXTENSION ADJECTIVE➤one-week, two-year, etc.延長一週、兩年等▸➤contract續約◇The player has signed a five-year contract extension.該運動員已續簽了五年的合同。VERB + EXTENSION➤apply for, ask for, request申請／要求／請求延期◇He's applied for an extension of his visa.他已經申請了簽證續期。➤negotiate就延期一事進行談判▸➤get, receive得到延期；獲得續期◇She got an extension for writing her essay.她獲准延期完成論文。➤give sb, grant sb給予某人延期；准予某人續期▸➤sign簽署延期
extension

noun³

 3making sth larger/taking sth further擴展；延長ADJECTIVE➤considerable, great, major, massive, significant相當大的延展；重大的擴展；大規模的擴展▸➤modest適度的延展▸➤further進一步的延展◇This new job is a further extension of his role as a manager.這一新工作是他經理職權的進一步擴展。➤gradual逐步的延展◇a gradual extension of the powers of central government中央政府權力的逐步擴張➤hair駁髮◇Hair extensions make your hair look longer.駁髮可以讓頭髮看上去長些。➤brand (business商業) 品牌延伸◇The company sees brand extensions as a means of tempting back customers.公司將品牌延伸作為吸引回頭客的手段。
extension

noun⁴

 4taking an argument/a situation further深入論證；情況的延續ADJECTIVE | PREPOSITION ADJECTIVE➤logical, natural, obvious符合邏輯的／自然的／明顯的延伸◇The team appraisal is a logical extension of the individual appraisal interview.團隊評估是個人評估面試的合理延伸。PREPOSITION➤by extension更進一步地◇The blame lies with the teachers and, by extension, with the politicians.過失在於老師，進一步說，在於政客。
TOEFL IELTS BNC: 2123 COCA: 3190

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