Polyargyrite
杂方辉锑银矿
🗣️ 情景例句
My mistake. it won't happen again.
是我的错。 不会再发生类似的事情了。
Yes, a little.
是,会一点。
If they knew how difficult it was to drill through the hard rock, they would lose heart.
如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。