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  1. boundary

    • IPA[ˈbaʊnd(ə)ri]

    英式

    • n.
      a line which marks the limits of an area; a dividing line;a limit of something abstract, especially a subject or sphere of activity
    • noun: boundary, plural noun: boundaries

    • 釋義
    • 相關詞
    • n.
      名詞
    • 1. a line which marks the limits of an area; a dividing line:

      a county boundary

      the river marks the boundary between the two regions

    • 2. a limit of something abstract, especially a subject or sphere of activity:

      a community without class or political boundaries

    • 3. a hit crossing the limits of the field, scoring four or six runs.
    • n. a person employed to maintain the outer fences of a cattle or sheep station.

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    • n. a condition that is required to be satisfied at all or part of the boundary of a region in which a set of differential equations is to be solved.

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    • n. a condition that is required to be satisfied at all or part of the boundary of a region in which a set of differential conditions is to be solved.

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    • ph. a region in northeast Minnesota, along the Ontario border, known as a canoeing wilderness.

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    • n. an umpire on the boundary line who signals when the ball is out and throws it back in to restart play.

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    • n. a value specified by a boundary condition.

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    • n. a layer of more or less stationary fluid (such as water or air) immediately surrounding an immersed moving object.

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    • n. a layer of more or less stationary fluid (such as water or air) immediately surrounding an immersed object in relative motion with the fluid.

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    • IPA[ˈbound(ə)rē]

    美式

    • n.
      a line that marks the limits of an area; a dividing line:
    • the eastern boundary of the wilderness

      the boundary between the US and Canada

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  2. 知識+

    • border和boundary是不是可以通用?

      border和boundary有時可以通用。根據<易混淆詞Confusable Words, Collins...如果要指「劃分兩國間或兩政治區域間,如州間或縣間的邊線界」,用border或boundary都可以(也可用borderline, boundary line)。例如:àThe train crosses...

    • boundary demands 有這樣的字

      boundary demands boundary名词 demands名词 [ 名词 +名...for . we possess all the qualities that this world . without boundaries demands" 歷經10年的戰爭即將結束,經濟復蘇業已...

    • 關於「boundaries」這個單字

      您好! boundariesboundary 的複數型,一般解釋為「邊界、分界線」或「界限、範圍」的意思...