Schalfnerite
铜钒铅锌矿
🗣️ 情景例句
I would like to know about your honeymoon travel packages.
我想要知道你们办的有关蜜月旅行计划。
How long will it take you to repair it?
你要多久才能修好它？
It is better to ask for help at the beginning rather than to wait until a busy period when everyone is rushed off their feet.
最好在开始工作时就请人帮忙，而不是等到大学都忙得不可开交的时候。