Presheaf
预层
🗣️ 情景例句
It's a great college.
那是一所好大学。
I hope you're enjoying your stay here.
我希望你能在这里过得愉快。
and whom I respect, confess at once that they have little idea where they are going when they first set pen to paper.
和尊敬的作家，都立即承认在他们动笔时，不清楚要写什么，怎么写。