Bismuthite
[化] 泡铋矿
🗣️ 情景例句
visiting places of revolutionary interest, outings, parties.
参观革命圣地，出去郊游，或者举办晚会。
This is Shen calling.
我姓沈。
However, rescue operations are proving difficult.
然而，事实证明营救工作非常困难。