四面体的

例句：

1. 1. The octahedral shape of the building is very distinctive.
   这座建筑的八面体形状非常独特。
2. 2. The tetrahedron is a simple geometric figure with four equilateral triangles.
   四面体是一个由四个等边三角形组成的简单几何图形。
3. 3. The tetrahedron has six faces and four vertices.
   四面体有六个面和四个顶点。