Mudstone
n. [地]泥岩
🗣️ 情景例句
Mr. Maxwell?
您是Maxwell先生吗？
Water dropping day by day wears the hardest rock away.
水滴天天滴不停，石头最坚也磨损。
I often visited The Gables when I was boy.
我小时候常去“山墙庄园”作客。