C28

One evening, he went to the city to buy some daily necessities. When he came back, he was a little tired, so he walked down the street with his head down. The night had already begun to turn hazy, and he didn't see Chun Fang coming towards him on the other side of the street.

"Teacher, where are you going?" Chun Fang excitedly crossed the road to Tsinghua University