正六面體的用法和樣例：
例句
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正方形或正六面體
A square or cube. -
骰子一個(gè)小的正六面體，每面分割為一副六個(gè)點(diǎn)，通常為一對，用于賭博或其它游戲中
A small cube marked on each side with from one to six dots, usually used in pairs in gambling and in various other games. -
正方形是二維的（平面的），而正六面體則是三維的（立體的）。
A square is two-dimensional and a cube is three-dimensional.
