Redruthite
[化] 辉铜矿
🗣️ 情景例句
Are all the classes within walking distance?
所有的教室都在步行范围之内吗？
Let me see what's available.
我查一查看有什么班机。
He told me to unpack my things and then come down to dinner.
他让我打开行装后下楼吃饭。