Plumboniobite
铅铌铁矿
🗣️ 情景例句
What happened?
怎么啦？
I'm afraid you will fail.
我怕你会失败。
I didn't mind, because it was really cold in Moscow. There was thick snow everywhere!
我并不介意，因为莫斯科的天气非常寒冷。到处都可看见厚厚的雪！