Bermanite
板磷镁锰矿
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
What's your nationality?I'm a native Australian.
我是土生土长的澳大利亚人，你的国籍是什么？
When did they leave this area?
他们什么时候离开这里？