Columbium oxide
[建] 氧化铌
🧩 词语组成解析
n. [化]铌
oxide
['ɑksaɪd]
n. [化]氧化物;
🗣️ 情景例句
Did you hear the news?
你听说那条新闻了吗？
The ancient Roman civilization was finally destroyed by the nomadic tribles.
古罗马终于被游牧民族灭亡了。
and to exercise such initiative as falls within their sphere,
在各自的工作范围内发挥主动性，