Seligmannite
硫砷铅铜矿
🗣️ 情景例句
Not too bad, thank you.
挺好的，谢谢你。
The many children of that family used to play together for hours.
那一家的孩子们常常大伙一起玩上几个小时。
but on the second, I applied myself assiduously to the task.
不过，新年第二天，我全力以赴地照着去做了。