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TOEFL IELTS BNC: 2050 COCA: 2776
boundary
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noun [C] /ˈbaʊnd(ə)ri/
singularboundary
pluralboundaries
  1. 1
    something such as a line on a map that marks where one area of land ends and another begins 分界线；边界

    a proposal to redraw the city boundary 重画城市边界的建议

    Akbar extended the boundaries of his empire in the north and to the south. 阿克巴把他在北部的帝国的边界向南扩大。

    boundary with :

    Estonians and Latvians began to query the status of their boundaries with Russia. 爱沙尼亚人和拉脱维亚人开始对他们与俄罗斯的边界状况表示质疑。

     Synonyms and related words
    Borders between countries and regions: border, line, frontier...
     Synonyms and related words
    Maps, using maps and map making: atlas, A to Z, boundary...
    1. a.
      a physical object such as a wall or fence that marks the limits of an area 界线

      a boundary fence/wall 界线栏/墙

      boundary between :

      The lane once formed the boundary between the two villages. 这条小巷曾经是这两个村庄的界线。

       Synonyms and related words
      Fences and boundaries: abuttals, balustrade, barbed wire...
    See also border
  2. 2
    [usually plural] the limits of an activity or experience 界限；范围

    a community in which class boundaries are very clearly drawn 等级界限分明的社区

    push back/extend the boundaries of something :

    new research that pushes back the boundaries of genetic science 扩大遗传学范围的新研究

    cut across boundaries :

    The party's support cuts across religious boundaries (=is not influenced by differences among religions). 政党的支持超越了宗教界限。

     Synonyms and related words
    Limits, controls and ranges: red line, limit, constraint...
    1. a.
      an imaginary point separating two different qualities, ideas etc （不同的特性、想法等之间的）界限
      boundary between :

      The boundary between fact and fiction in her writing is often blurred. 在她的作品中事实与虚构之间的界限经常很模糊。

       Synonyms and related words
      Difference and differences: difference, contrast, distinction...
    Collocates: boundary
    Verbs frequently used with boundary as the object
    ▪  cross, define, establish, extend, overstep, push back
  3. 3
    the outer edge of the playing area in cricket （板球球场的）边界线
     Synonyms and related words
    Cricket: the Ashes, at stumps, bail...
TOEFL IELTS BNC: 2050 COCA: 2776
boundary

noun¹

 1line that marks the limits of a place邊界ADJECTIVE | VERB + BOUNDARY | BOUNDARY + NOUN | PREPOSITION ADJECTIVE➤common共有邊界▸➤northern, southern, etc.北部、南部等邊界▸➤national, state國界；州界➤territorial領土邊界▸➤district, parish (especially BrE) 行政區界；教區界➤geographic, geographical地理分界VERB + BOUNDARY➤have有界限▸➤form, mark形成界限；標記邊界◇The river forms the boundary.這條河形成了邊界。➤share共有邊界▸➤draw, establish, fix, set劃定邊界；確立邊界◇The boundary was fixed just south of the farm.邊界就定在農場南面。➤redraw重劃邊界BOUNDARY + NOUN➤fence, hedge, line, wall邊界圍欄；邊界樹籬；邊界線；界牆▸➤dispute邊境爭端◇a boundary dispute between Brazil and Paraguay巴西與巴拉圭的邊界之爭PREPOSITION➤across the boundary, over the boundary穿過邊界◇They drove across the boundary.他們開車穿過邊界。➤along the boundary沿着邊界◇We continued along the southern boundary of the county.我們繼續沿着該郡南部邊境前進。➤at the boundary, on the boundary在邊界◇We had to stop at the boundary.我們不得不在邊界停下。◇on the boundary of the two countries在兩國的國界處➤beyond the boundary在邊界線以外◇She had never strayed beyond the city boundaries.她從未出過這個城市。➤within the boundaries在邊界線以內◇within the boundaries of the old city walls在老城牆的範圍以內➤boundary between⋯之間的邊界◇the boundary between Sussex and Surrey薩塞克斯郡和薩里郡之間的邊界➤boundary with與⋯的邊界◇The state has a boundary with Ontario.這個州和安大略省相鄰。
boundary

noun²

 2limit界限ADJECTIVE | VERB + BOUNDARY | PREPOSITION | PHRASES ADJECTIVE➤traditional傳統界限VERB + BOUNDARY➤cross超越界限◇This job crosses the traditional boundary between social work and health care.這項工作跨越了社會工作與醫療保健之間的傳統界限。➤extend, push, push back擴展範圍◇research which extends the boundaries of human knowledge拓展了人類知識範圍的研究➤overstep超越界限➤establish確定界限➤define規定界限➤blur使界限模糊◇The Internet has blurred the boundary between news and entertainment.因特網模糊了新聞與娛樂的界限。PREPOSITION➤across boundaries越過界限◇His policies appeal across party political boundaries.他的政策感召力超越了黨派政治界限。➤beyond the boundaries超出界限◇This goes beyond the boundaries of what is accepted.這超出了能接受的界限。➤on the boundary在邊緣◇on the boundary of physics and chemistry在物理與化學的學科邊緣➤within the boundaries在⋯範圍內◇the importance of keeping within the boundaries of the law遵守法律底線的重要性➤boundary between⋯之間的分界線◇the boundary between sanity and insanity神志正常與不正常的分界線PHRASES➤the boundaries of taste品位的界限◇In her performance she had clearly overstepped the boundaries of good taste.很顯然她的表演品位流於庸俗。➤sb/sth knows no boundaries⋯無止境◇His passion for the arts knows no boundaries.他對藝術無限熱愛。
TOEFL IELTS BNC: 2050 COCA: 2776
boundary noun
⇨ border (a boundary wall) ⇨ limit 2 (the boundaries of knowledge)

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