Eudidymite
[矿]双晶石
🗣️ 情景例句
We have several package tours you may choose, from ten days to three weeks in Europe.
我们有几套欧洲旅游计划选择，时间从10天到3个星期。
How long does it take?
火车要开多久？
Can you spell it, please?
请您把它拼出来好吗？