Alstonite
[化] 碳酸钙钡矿
🗣️ 情景例句
It's nice to meet you.
很高兴见到你 。
Did the chicken come before the egg?
先有鸡还是先有蛋？
Armed with a torch, the vicar went up into the clock tower to see what was going on.
牧师拿着一支电筒走上钟楼想去看看究竟发生了什么事情。