NB
释义
注意, 留心
[医] 铌(41号元素)
英文释义
n a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
n a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something
BNC词频排名: 0 | 当代语料库词频排名: 0