名词
中文翻译：七角形的
同义词：
['heptagon', 'heptagonal']
例句：
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1.The heptagon is a geometric shape with seven sides.
七边形是一种具有七个边的几何形状。
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2. The heptagon was used as the symbol for the Olympic Games in ancient Greece.
七边形作为古代希腊奥运会的象征。
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3. The heptagon has been featured in many architectural designs.
七边形在许多建筑设计中都有出现。