Kieseritite
石盐镁矾
🗣️ 情景例句
Technology has totally changed our life over the past two decades.
在过去的二十年里，科学技术已经完全改变了我们的生活。
You were lucky to find it.
你的运气真好。
When did you come to China?
你什么时候来到中国？