pollen tetrahedron

• 花粉四面体

pollen tetrahedron的用法和样例：

例句

1. The Rubik's is a toy in the shape of a tetrahedron.
   魔方是个四面体的玩具。
2. Each tetrahedron shares two of its oxygens with neighboring tetrahedra.
   每个四面体都有两个氧原子是与其相邻的两个四面体共用的。