Stibiocolumbite
铌锑矿
🗣️ 情景例句
I happened to meet her on the bus.
我凑巧在公共汽车上碰见她。
No use asking you.
问你也是白问。
at eighty can knock us out, and into our grave.
能到了80岁可能会使我们一蹶不振而进入坟墓。