Gerhardtite
铜硝石
🗣️ 情景例句
What channel?
哪个频道？
That fellow never pays his bills on time.
那个男人从没按时付过账。
I haven't told you that my family made a lot of money in the nineteenth century by making children work 16 hours a day in their factories.
我还没有告诉过你，我的家在19世纪的时候赚了一大笔钱，是强迫儿童在工厂里一天劳动16个小时赚来的。