名词
中文翻译：四边形
同义词：
['tetrahedron', 'tetragon', 'tetrahedron例句：1. The tetrahedron is a shape with four equilateral triangles.（四边形是一种有四个等边三角形的几何形状。）']
例句：
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1. The tetrahedron is a shape with four equilateral triangles.
四边形是一种有四个等边三角形的几何形状。
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2.The tetrahedron has four vertices and six faces.
四边形有四个顶点和六个面。
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3. The tetrahedron is used in various scientific fields to study the properties of materials.
四边形在科学研究中用于研究材料的性质。