Plumboniobite
铅铌铁矿
🗣️ 情景例句
I'm sorry, Carl.
很抱歉 Carl。
The chemist is testing enzymes.
化学家在试验着酶。
Many of the tourists on board had begun bargaining with the tradesmen, but I decide not to buy anything until I had disembarked.
船上许多游客开始同商贩讨价还价起来，但我打定主意上岸之前什么也不买。