Cornstone
n. [地]玉米灰岩
🗣️ 情景例句
For a beginner, you're pretty good.
做为一个初学者，你已经做得很好了。
Maybe we could start with the Designing Department.
也许我们可以先参观一下设计部门。
It's a waste of time reading that book. It's rubbish.
看那本书真是浪费时间。那简直是垃圾。