Arsenomarcasite
砷黄铁矿, 毒砂
🗣️ 情景例句
It's not easy being away from home.
离家独闯不容易。
We know that you are leading exporters of coal and you can provide the quantity we need.
我们知道贵方是主要煤炭出口商，能满足我们的需求量。
Think carefully before you act.
三思而后行。