NASS
📖 中文释义
- abbr. 国家农业统计局（National Agricultural Statistics Service）
📘 English Definition（英文释义）
- n. 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)