柯林斯词典magnesium /mæɡˈniːzɪəm/ 1. N-UNCOUNT Magnesium is a light, silvery white metal which burns with a bright white flame. 鎂 返回 magnesium剑桥词典a chemical element that is a silver-white metal . Magnesium burns very brightly and is used in making fireworks . （化學元素）鎂 返回 magnesium