C251 I'm sure I won't be late next time

Next time, I'm sure I won't be late

"Student Xiao Feng, I'm really sorry for disturbing you. Can you help me explain this problem?" As he spoke, he slowly placed the book in his hands in front of Wang Xiaofeng. He felt that at this moment, his voice was extremely weak, and his speech was even somewhat stuttering.

Wang Xiaofeng impatiently took her book. Before she could even speak