Columbous compound
[建] 三价铌化合物
🧩 词语组成解析
[建] 三价铌, 亚铌
🗣️ 情景例句
It's just incredible!
简直是难以置信！
All time is no time when it is past.
光阴一去不复返。
That might be quite expensive.
那花钱可就多啦。