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TOEFL IELTS BNC: 5296 COCA: 5605

B2 a flat shape with three straight sides三角形

an equilateral/isosceles triangle等边/等腰三角形

anything that has three straight sides三角形物

Which earrings did you buy in the end - the triangles or the circles?最后你买了什么样的耳环——三角形的还是圆的?

a musical instrument consisting of a thin metal bar bent into a triangle shape that is hit with a metal bar to make a sound三角铁(打击乐器)

US UK set square a flat piece of metal or plastic in the shape of a triangle with one angle of 90°, used for drawing angles(画三角形用的)三角板

also frame a three-sided frame for arranging the balls at the start of a game of billiards, pool, etc.(在台球等比赛开始时摆放球用的)三角板

More examples

Draw a perpendicular from the vertex of the triangle to its base.

A triangle is a shape with three sides.

The cloth was decorated with triangles of different colours.

We cut some triangles of cheese.

To make a star, put two triangles together.

TOEFL IELTS BNC: 5296 COCA: 5605
triangle

noun¹

1shape形狀ADJECTIVE | VERB + TRIANGLE | PHRASES ADJECTIVEequilateral, isosceles, right, right-angled, scalene等邊三角形;等腰三角形;直角三角形;不等邊三角形inverted倒三角形a large region resembling an inverted triangle近似一個倒三角形的大區域VERB + TRIANGLEconstruct (technical術語) , draw作三角形;畫三角形
Use your protractor to construct an equilateral triangle.用量角器作一個等邊三角形。form構成三角形cut sth into把⋯切成三角形I cut the sandwiches into triangles.我把三明治切成三角形。PHRASESthe apex of a triangle三角形的頂點
triangle

noun²

2musical instrument樂器 topic at music
TOEFL IELTS BNC: 5296 COCA: 5605

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