Langbanite
硅酸锰锑铁矿
🗣️ 情景例句
Not a lot.
没什么重要的事啦。
I'm not really sure about that. Mr. Jiang should know the answer to that.
关于那事我不敢确定，蒋先生应该知道答案。
It's too hard. Oh, dear! Is it broken?
太难了，天那！风筝被弄坏了！