There are five and only five types of regular polyhedrons, i.e., tetrahedrons, hexahedrons, octahedrons, dodecahedrons and icosahedrons.是什么意思_There are five and only five types of regular polyhedrons, i.e., tetrahedrons, hexahedrons, octahedrons, dodecahedrons and icosahedrons.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句