名词
中文翻译：四边形
同义词：
['quadrangle', 'quadrilateral例句：1. The four-sided building has a unique design.（这座四边形建筑有着独特的设计。）']
例句：
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1. The four-sided building has a unique design.
这座四边形建筑有着独特的设计。
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2. The quadrangle is surrounded by greenery.
这个四边形被绿植环绕。
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3. The quadrangle was designed to accommodate the growing population.
这个四边形是为了容纳不断增长的人口而设计的。