Columbite
[建] 铌铁矿
🗣️ 情景例句
It's none of my business, but I think you ought to work harder.
这不关我的事，但我想你应该更加努力地工作。
Never trust to fine words.
切勿轻信漂亮话。
and existence an empty laugh braying across the mysteries;
如果存在不只是对神秘事物的一种空虚的笑声，