名词
中文翻译：五角星
同义词：
['pentagon', 'pentagram例句：1. The star on the flag represents the five-pointed pentacle.（国旗上的星星代表五角星。）']
例句：
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1. The star on the flag represents the five-pointed pentacle.
国旗上的星星代表五角星。
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2.The pentagon is a geometric shape with five sides.
五边形是一种具有五个边的几何形状。
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3. The ancient Greeks believed that the pentacle was a symbol of good luck.
古希腊人相信五角星是好运的象征。