The midsummer when I was fourteen years old was the beginning of my dream.
"Why is this question so difficult!" Xia Yi lay on the table and wailed. Wei Xuanran, who was sitting next to him, saw it and leaned over and said lightly: "Which question can't you do?" Laugh. You see, this question mainly tests the monotonicity of the function and then you... And then..." After that, Wei Xuanran talked about a bunch of formulas and theorems. Xia Yi thought: Why are there so many, it's like chanting a scripture, "Do you understand?" Wei Xuanran asked, "It's like chanting a scripture, no no... No, I understand!"
The ignorance of youth is like a clear spring.
Concept: From life, secret love