Clausthalite
[化] 硒铅矿
🗣️ 情景例句
Morning, Marilyn.
早安， Marilyn。
It's a shame these instructions are so complicated.
真遗憾，这些说明太复杂了。
found a brother who was thought to have been killed twenty years before.
巴斯曼如何找到了据信已在20年前死去的兄弟的事。