platinum family metal

例句：

1. 1. The platinumring is a symbol of love and commitment.
   铂金戒指是爱情和承诺的象征。
2. 2.The platinum watch is highly valuedfor its precision and durability.
   铂金手表因其精确性和耐用性而备受珍视。
3. 3. The platinum market has beenvolatile recently due to geopoliticaltensions.
   由于地缘政治紧张局势，铂金市场近期波动较大。