Chalcocitization
辉铜矿化(作用)
🗣️ 情景例句
How about some ice?
来点冰怎么样？
Time past cannot be called back again.
光阴一去不复返。
Last August. We had a lovely holiday, one of the best ever.
去年8月。我们度过了一个令人愉快的假日，也是有史以来最愉快的假日之一。