a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
例句
用作名词 (n.)
Common salt is a compound of sodium and chlorine. 食盐是钠和氯的化合物。
美
['soʊdiəm]
