柯林斯词典barium /ˈbɛərɪəm/ 1. N-UNCOUNT Barium is a soft, silvery-white metal. 钡 返回 barium剑桥词典a chemical element that is a soft , silver-white metal , is alkaline, and combines with oxygen very easily 钡（一种质软的银白色金属元素，碱性、易氧化） 返回 barium