Stibiocolumbite
铌锑矿
🗣️ 情景例句
Yes, honey. I did.
是的， 亲爱的， 是这样。
She is supposed to be one of the best singers.
大家认为她是最有名气的歌星。
Then he spoke slowly, but I could not understand him.
于是他说得慢了，可我还是听不懂。