Clausthalite
[化] 硒铅矿
🗣️ 情景例句
Rome wasn't built in a day.
冰冻三尺，非一日之寒。
We can live without a brother, but not without a friend.
我们生活中可以没有兄弟，但不能没有朋友。
I can't help it.
我情不自禁。