Petscheckite
铌钽铁铀矿
🗣️ 情景例句
I'd like to borrow some money.
我想借一些钱。
Did you go to the party yesterday?
你昨天去参加聚会了吗？
Can't we visit the High Dam? I've read a lot about it; it's the biggest in the world.
我们不能去参观高坝吗？我已读了很多关于高坝的情况；它是世界上最大的。