Ferrocolumbium
铁铌合金, 铌铁
🗣️ 情景例句
He has a big sales office in Los Angeles,
他在Los Angeles有一个大的销售办事处，
You have to be there half an hour before departure time.
你要在起飞前半小时到那里。
How is this word pronounced?
这词儿怎么读？