octagons 

  1. 名詞
octagon複數: 八邊形, 八角形
八角堂

    
                        
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例句

                

                    
    
                                                    
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                                Together they define octagons with slightly concave sides.                            
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                                Double hexagons and octagons are the most common variations.                            
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                                They had to cross their pods in octagons on the floor, or on a balance beam.                            
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                                Thomas Jefferson designed and built two brick octagons at his vacation home.                            
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                                For example the truncated cube has its triangles and octagons in different orbits.                            
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