Lithogeny
岩石成因学
🗣️ 情景例句
You and I are very busy these days.
这些天来我们俩都很忙。
We've got to get a mirror for the bashroom.
我们必须有一面镜子放在浴室。
I can't remember.The man who I served was wearing a hat.
我记不起来了。我接待的那个人戴着一顶帽子。