Niobian
a. (矿物)含铌的
🗣️ 情景例句
Of course, I'll visit at least once a year, maybe more.
当然，我最少每年会来拜访一次，也许更多次。
Little strokes fell great oaks.
水滴石穿。
Here's your copy of the contract.
这是你的那一份契约。