extension
英 [ɪkˈstenʃn] 美 [ɪkˈstɛnʃən]

n.

伸展，扩大；延长，延期；[医]牵引；电话分机

变形

复数：extensions

双语释义

n.(名词)

1. [U]延伸,扩展 (an example of) the act of extending or being extended
2. [C]增加部分 a part which is added to make sth longer, wider, or larger
3. [C]电话分机 any of many telephone lines which connect various rooms or offices in a large building to the switchboard

英英释义

extension[ ik'stenʃən ]

• n.
  • a mutually agreed delay in the date set for the completion of a job or payment of a debt

    "they applied for an extension of the loan"

  • act of expanding in scope; making more widely available

    "extension of the program to all in need"

  • the spreading of something (a belief or practice) into new regions

    同义词：propagation

  • an educational opportunity provided by colleges and universities to people who not enrolled as regular students

    同义词：extension serviceuniversity extension

  • act of stretching or straightening out a flexed limb
  • a string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename

    "most applications provide extensions for the files they create"; "most BASIC files use the filename extension .BAS"

    同义词：filename extensionfile name extension

  • the most direct or specific meaning of a word or expression; the class of objects that an expression refers to

    "the extension of `satellite of Mars' is the set containing only Demos and Phobos"

    同义词：referencedenotation

  • the ability to raise the working leg high in the air

    "the dancer was praised for her uncanny extension"; "good extension comes from a combination of training and native ability"

  • amount or degree or range to which something extends

    "the wire has an extension of 50 feet"

    同义词：lengthinessprolongation

  • an additional telephone set that is connected to the same telephone line

    同义词：telephone extensionextension phone

  • an addition to the length of something

    同义词：elongation

  • an addition that extends a main building

    同义词：annexannexewing

词汇搭配

用作名词 (n.)动词+～

• ask for〔request〕 an extension要求延期
• get〔receive〕 an extension得到延期
• grant an extension批准延期

形容词+～

• three-month extension三个月的期限
• two-room extension扩建了两间屋
• further extension进一步延长

名词+～

• business extension分店营业所
• pedal extension踏板的接长节
• railway extension铁路的延长部分
• telephone extension电话分机
• time extension延长时间

～+名词

• extension ladder伸缩梯
• extension number分机号
• extension spring弹簧

～+介词

• extension of time limit时限的延长
• extension to the hospital医院的扩建

词组短语

brand extension品牌延伸

by extension相关地；引申开来

extension service推广服务

crack extension裂纹扩展；裂纹扩张

extension set分机；增设装置

research and extension研究与推广

extension number分机号码

extension of time延期；延长时间；延长合约期

file extension文件扩展名；档案延伸

extension methods扩展方法

university extension大学附校；大学推广教育

extension spring拉簧；牵簧，牵引簧；拉伸弹簧

extension line延长线；分机线；引出线

time extension时间延长

credit extension援权（信用状期限延长）

extension cord延长线；分机线绳

hair extension接发

elastic extension弹性伸长；弹性延伸

extension telephone n. 电话分机

更多收起词组短语

双语例句

用作名词(n.)

1. This cord is not long enough! do you have an extension?
   这条绳子不够长！你有长一点的吗？
2. His leg was now capable of full extension.
   他的腿现在能够伸展自如了。
3. He asked for an extension of his visa.
   他申请延长签证有效期。
4. We built an extension to our house.
   我们扩建了我家的房屋。
5. He sees local history as an extension of family history.
   他认为当地的历史是每个人家庭历史的发展。
6. The country decided to have an extension of government control on the market.
   该国决定对市场加强政府监管。

用作名词(n.)

1. There are telephone extensions in every office.
   每间办公室都有电话分机。

用作名词(n.)

1. Method will only return one unique file name per file name extension.
   方法对每个文件名扩展名只返回一个唯一文件名。
2. You can optionally filter the list by extension and keyword contained inthe file name, and also choose to include sub-directories.
   你可以按照包含在文件名当中的扩展名和关键字有选择地过滤列表，并且还可以选择包括子目录。

权威例句

Extension of Life-Span by Introduction of Telomerase into Normal Human Cells
Information theory as an extension of the maximum likelihood principle.
A theoretical extension to the technology acceptance model: four longitudinal studies
Measuring service quality: Reexamination and extension
A Theoretical Extension of the Technology Acceptance Model: Four Longitudinal Field Studies
A Theoretical Extension of the Technology Acceptance Model: Four Longitudinal Field Studies
Site-directed mutagenesis by overlap extension using the polymerase chain reaction
Absorptive Capacity: A Review, Reconceptualization, and Extension
Davis, F.D.: A Theoretical Extension of the Technology Acceptance Model: Four Longitudinal Field Studies. Management Science 46(2), ...
Engineering hybrid genes without the use of restriction enzymes: gene splicing by overlap extension.