noun🔗Share五边形，五角形 A polygon with five sides and five angles."The artist drew a row of pentagons, each with five sides, to create a border for her drawing. "这位艺术家画了一排五边形，每个都有五条边，为她的画作创作了一个边框。mathfigureChat with AIVocabulary GamePractice Reading
noun🔗Share五角堡垒，五边形堡垒。 A fort with five bastions."The old city walls were shaped like pentagons, with each of the five bastions offering a strong defensive position. "古老的城墙呈五角堡垒的形状，每个角上的五个棱堡都提供了坚固的防御位置。architecturemilitaryChat with AIVocabulary GamePractice Reading
