Borocalcite
硼钙石
🗣️ 情景例句
I know I should,
我知道应该这样，
Is the source of the information reliable?
那个消息的来源可靠吗？
They all went up some narrow steps into a large room.
他们全都登上这些狭窄的台阶，接着进入一个大房间。