Kieserite
n. [地质] 硫酸镁石
🔁 扩展释义
【化】 水镁矾
🗣️ 情景例句
Oh, I'm sorry Susan isn't here.
啊 可惜Susan不在。
Do you often play tennis on Sunday?
你常常在星期日打网球吗？
Fifteen minutes passed and then, at five to twelve, the clock stopped.
15分钟过去了，而就在11点55分时，大钟停了。