Metallogenesis
成矿作用
🗣️ 情景例句
Yes, I'm ready.
是的，我想好了。
This round table weighs about forty-five pounds.
这张圆桌子重大约45磅。
Just a minute. She's taken the bag that usually sits on top of the cupboard.
等等。她带走了通常放在壁橱顶上的包。