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- n. 三角（形）
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1. He draw a triangle with his finger.
他用手指画了个三角形。
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2. So, we have to find the area of the triangle.
因此我们必须求出三角形的面积。
tri·angle ★ / ˈtraɪæŋɡl ; NAmE ˈtraɪæŋɡl / noun 1 ★ a flat shape with three straight sides and three angles; a thing in the shape of a triangle 三角形；三角形物体 ◆ ( BrE) a right-angled triangle 直角三角形 ◆ ( NAmE) a right triangle 直角三角形 ◆ Cut the sandwiches into triangles. 把三明治切成三角形。 2 a simple musical instrument that consists of a long piece of metal bent into the shape of a triangle,that you hit with another piece of metal 三角铁（打击乐器） 3 a situation involving three people in a complicated relationship 三角关系 ◆ a love triangle 三角恋爱 ☞see also eternal triangle 4 ( NAmE) ( BrE ˈset square ) an instrument for drawing straight lines and angles, made from a flat piece of plastic or metal in the shape of a triangle with one angle of 90° 三角板；三角尺 triangle triangles tri·angle / ˈtraɪæŋɡl ; NAmE ˈtraɪæŋɡl /
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