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  1. contour line

    • IPA[ˈkänto͝o(ə)r līn]
    • n.
      a line on a map joining points of equal height above or below sea level
    • noun: contour line, plural noun: contour lines

    • 釋義

    名詞

    • 1. a line on a map joining points of equal height above or below sea level every valley bottom below a certain contour line must have been soggy and at times impassable