“合金”的拼音为：hé jīn...

黄铜是铜锌合金。Brass is an alloy of copper and zinc.车上装的食品是用铬合金做的.The trimmings on the car are made of chromium.工人在合金里搀了一点铜.The worker worked in a little copper with the alloy....

“合金”的英语可以翻译为：alloy，compound metal，rafting，metal ...