Alstonite
[化] 碳酸鈣鋇礦
??? 情景例句
She hasn't been employed for six months now.
她已經失業半年了。
We have vanilla,chocolate,and strawberry.
我們有香草，巧克力，還有草莓。
Let's see what we can substitute.
我們來想看看有沒有什么可以代替的。