Kalistrontite
n. [矿]硫酸锶钾
🗣️ 情景例句
when it's very cold out.
冬天外面很冷的时候。
It's bleeding.You'd better go see a doctor about that cut.
它正在流血. 你最好为那个刀口去看医生。
What do you do as a director?
作为导演您具体干什么呢？