Duftite
砷铜铅矿
🗣️ 情景例句
Nothing. I am in excellent health.
没什么。我身体好的很。
I don't know what to say. I'd like to replace it.
我不知说什么好。我赔一个新的给你。
so every so often a sample is obtained with a coring bit.
因此时常要用取芯钻头取样。