立方的用法和樣例：
例句
-
正方形有四個角兒;立方體有八個角兒。
A square has four corners; a cube has eight. -
立方體有六個面。
A cube has six surfaces. -
這個集裝箱的體積是20立方米。
The volume of this container is 20 cubic meters. -
三的立方是二十七。
Three cubed is twenty-seven. -
四的立方是六十四。
Four cubed is sixty-four. -
立方體是三維物體。
A cube is a three-dimensional object.
