Didymolite
[矿]钙蓝石
🗣️ 情景例句
What's the problem?
什么问题？
No. Can't you see that rocket is almost falling down.
不。你不知道火箭快要倒下来了吗？
I know that he's doing his best, but he says that he is a little weak in Chinese.
我知道他非常努力，但他说他的中文有点儿差。