形容词
中文翻译：Unknown
同义词：
['quadrilateral', 'quadrilateral']
例句：
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1. The quadrilateral is a shape with four sides and four angles.
这个四边形有四个边和四个角。
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2. The quadrilateral was formed by the intersection of two parallel lines.
这个四边形是由两条平行线相交形成的。
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3. The quadrilateral is often used in geometry to represent a plane figure.
这个四边形在几何学中常被用来表示一个平面图形。