Silica structure is based on a tetrahedral arrangement of a silica atom bonded to oxygen atoms.

它的基本结构是由一个硅原子与四个氧原子成键，构成一个四面体。

Phosphate is made up of one central phosphorus atom surrounded by four oxygen atoms in a tetrahedral arrangement, like a mini pyramid, and has a charge of minus 3 and is written PO43-.

磷酸盐由一个位于中心的磷原子和四个氧原子组成，呈四面体结构，像一个小金字塔，电荷为-3，写成PO43-。

Now, phosphate is made up of one central phosphorus atom surrounded by four oxygen atoms in a tetrahedral arrangement, kind of like a mini pyramid, and has a charge of minus 3 and is written PO43-.

磷酸盐是由一个中心的磷原子和四个氧原子包围所组成，以四面体构造排列，有点像小金字塔，其电荷是-3写作PO43-。