alloyed

adj.

(used of metals) debased by mixture with an inferior element

(used of metals) blended to obtain a desired property

1. The gold was alloyed with copper to increase its strength and durability.
   黄金与铜合金化，以提高其强度和耐用性。
2. Her happiness was alloyed with a sense of guilt, knowing she had hurt her friend.
   她的快乐掺杂着一种负罪感，因为她知道自己伤害了朋友。
3. The alloyed metal showed improved resistance to corrosion and wear.
   合金金属表现出了更强的耐腐蚀性和耐磨性。