Chalcocitization
辉铜矿化(作用)
🗣️ 情景例句
I visited Japan on an observation tour of its industries.
我到日本观摩它的工业。
I've come to say goodbye.
我是来告别的。
No!We're alone here. We're all by ourselves, said Jim. Isn't that great?
“没有！就我们在这儿。就我们这伙人，”吉姆说，“这不是很好吗？”