Cornstone
n. [地]玉米灰岩
🗣️ 情景例句
Oh, thank you! Thank you!
哦， 谢谢， 谢谢 。
We used to have a lot of fun when we were that age.
当我们是变老时，我们过去常有很多趣事。
What a great teacher!
多么高尚的老师！