Mionite
钙柱石
🗣️ 情景例句
How long will it take for my mail to reach its destination?
我的信件到达目的地要多久？
The mailman is delivering letters.
邮差在发信。
If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours.
如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。