a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
造句
用作名詞(n.)
Magnesium is the nutrient element in plant growth. 鎂是植物生長的營養要素。
Dr Green prescribed magnesium sulphate. 格林醫生開的藥是硫酸鎂。