Chalcotrichite
毛赤铜矿
🗣️ 情景例句
It's mostly young people who take part.
参加活动的绝大多数是年青人。
After breakfast,I'll get ready go to work.
在早餐以后，我将准备好去工作。
It suddenly occurred to one of the workers to open up the box.
突然一个工人想到打开箱子看看。