三次方的

例句：

1. 1. The cube is a simple shape that can be used to represent many different things.
   立方体是一种简单的形状，可以用来代表许多不同的事物。
2. 2. The cube has six sides and four faces.
   立方有六个面和四个面。
3. 3. The cube was the first object to be made from pure metal.
   立方是第一个由纯金属制成的物体。