Laurionite
[矿]羟氯铅矿
🗣️ 情景例句
May I see you in my office?
你可以到我的办公室来一下么？
I'm going to buy five pieces.
我要买五片。
I'm changing my hotel. I'll drop in and leave the new address.
我就要换一家旅馆了。我会顺便再来一趟，把新地址留下来的。