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1. Oxford American Dictionary

   triangle

   • IPA[ˈtrīˌaNGɡ(ə)l]

   美式

   • n.
     a plane figure with three straight sides and three angles；a thing shaped like a triangle

   • noun: triangle, plural noun: triangles

2. • 釋義

   n.

   名詞

   • 1. a plane figure with three straight sides and three angles an equilateral triangle
   • ▪ a thing shaped like a triangle a small triangle of grass
   • ▪ a situation involving three people or things, especially an emotional relationship involving a couple and a third person with whom one of them is involved.
   • ▪ a musical instrument consisting of a steel rod bent into a triangle and sounded by being struck with a small steel rod.
   • ▪ a frame used to position the balls in pool and snooker.
   • ▪ a drawing instrument in the form of a right triangle.
   • ▪ a frame of three halberds joined at the top to which a soldier was bound for flogging.