cubond

例句：

1. 1. The copper alloy is used in the construction of bridges and buildings.
   这种铜合金用于桥梁和建筑的建设。
2. 2. The copper alloy has excellent corrosion resistance.
   这种铜合金具有极好的耐腐蚀性。
3. 3. The copper alloy is a popular material for jewelry making.
   这种铜合金是制作珠宝的热门材料。