Schallerite
砷硅锰矿
🗣️ 情景例句
Let's call Marilyn.
我们还是叫Marilyn来吧。
No. It's only a little way.
不远，只有一小段路。
and the search for oil has done more to improve deep drilling than any other mining activity.
寻找石油比其他任何采矿业对改进深孔钻探作的贡献都要大。