及物动词
名词
1. 合金
An alloy is a metal that is made by mixing two or more types of metal together.
1. the state of impairing the quality or reducing the value of something
Synonym: admixture
2. a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten
e.g. brass is an alloy of zinc and copper
Synonym: metal