C67 Sir buy a rose for your girlfriend

Sir, buy a rose for your girlfriend.

Looking at the notebook that Hao Ying handed over, I curiously asked:

"This is?"

"I see that you've been quite busy recently. This is the notes I've taken during class. There are many unique insights and experiences of teachers about our field. I think it should be helpful to you, and it might be useful in future finals!"

Hao Ying said softly