Speleothem
n. [地]洞穴堆积物(如钟乳石)
🗣️ 情景例句
I'll get through this work by noon.
我会在中午以前完成这项工作。
John stopped studying.
约翰停止学业了。
When I was a boy, my grandfather told me how a German taxi driver, Franz Bussman,
当我是个孩子的时候，我祖父给我讲了一位德国出租汽车司机弗朗兹。