名词
中文翻译：正四面体的
同义词：
['tetrahedron', 'tetrahedron例句：1. The tetrahedron is a shape with four equilateral triangles.（四面体是一个有四个等边三角形的图形。）']
例句：
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1. The tetrahedron is a shape with four equilateral triangles.
四面体是一个有四个等边三角形的图形。
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2. The tetrahedron has 12 edges and 8 faces.
四面体有12条边和8个面。
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3. The tetrahedron is used in computer graphics to represent shapes with four sides.
四面体在计算机图形学中用于表示具有四条边的图形。