alloy
noun [ C or U ] uk/ˈæl.ɔɪ/ us/ˈæl.ɔɪ/
合金
a metal that is made by mixing two or more metals, or a metal and another substance
Brass is an alloy of copper and zinc. 黄铜是铜与锌的合金。
alloy wheels 合金制作的车轮
alloy
verb [ T ] literary uk/əˈlɔɪ/ us/əˈlɔɪ/
损坏；使（价值）降低；影响
to spoil something or reduce it in value
My pleasure in receiving the letter was somewhat alloyed by its contents. 我收到这封信时的喜悦在读过信后蒙上一层阴影。