Fluoniobate
氟铌酸盐
🗣️ 情景例句
Yes, I took part in.
有，我参加了。
Have you seen Mr. Smith recently?
最近你见过史密斯先生吗？
They hit us with their sticks over and over again and put some of us in prison.
他们用棍棒一次又一次的打我们，并且把我们中的一些人抓进监狱。