Barnhardtite
块黄铜矿
🗣️ 情景例句
Please sit down, Mr. Mark.
请坐吧，马克先生。
The shortest answer is doing.
最简短的回答是做。
I joined in the march and we were marching peacefully along and then the police came up.
我参加了游行，我们以和平的方式往前行进，这时警察突然来了。