Oregonite
砷铁镍矿
🗣️ 情景例句
We tested it last week on twelve- to fifteen-year-olds,
我们上一周曾在十二岁至十五岁的孩子中试过这项游戏，
Do you have a computer?
你有计算机吗？
However, this does not always happen.
然而，情况并不都是这样，