Columbium
n. [化]铌
🗣️ 情景例句
How soon will my mail be received by the other end?
我的信件多快能被对方收到？
Please pour this milk into that glass.
请把这牛奶倒进那玻璃杯里。
He say he's just arrived in Scotland. He says he's staying at a Youth Hostel.You know he's a member of the Y.H.A.
他说他刚到苏格兰。他说他住在一家青年招待所。你知道，他是“青招协”的一个成员。