金银合金

例句：

1. 1. This jewelry is made of a high-quality gold-silver alloy.
   这枚珠宝是由高品质的金银合金制成的。
2. 2. The ancient coins are made of pure gold and silver alloys.
   古代硬币是由纯金银合金制成的。
3. 3. The alloy has excellent wear resistance and corrosion resistance.
   这种合金具有良好的耐磨性和耐腐蚀性。