立方体的

例句：

1. 1. The cube is the smallest unit of measurement.
   立方体是最小的测量单位。
2. 2. The cube has six sides and four corners.
   立方体有六个面和四个角。
3. 3. The cube was used to measure the size of the room.
   立方体被用来测量房间的大小。