Petscheckite
铌钽铁铀矿
🗣️ 情景例句
Forget it.
忘掉它吧。
It's essential to choose the right means of transportation.
选择合适的运输方式很重要。
Pumas are large, cat-like animals which are found in America.
美洲狮是一种体形似猫的大动物，产于美洲。