Claystone
黏土石, 黏土岩
🗣️ 情景例句
Thanks, Grandpa. Please sit down.
谢谢你， 爷爷。请坐。
I went there on business.
我出差到那儿。
I'm sorry, but this week isn't very convenient for me.
对不起，这个星期我都不方便。