platinum bronze alloys

例句：

1. 1.The platinum ring 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 valued for 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 been volatile recently due to geopolitical tensions.
   由于地缘政治紧张局势，铂金市场近期波动较大。