Gu Meng chased Song Renxi with the physics paper and said, "You walked too fast, I almost couldn't catch up." Gu Meng said again, Okay, your legs are amazing! Song Renxi immediately laughed heartily, but then said with a cold face: "I have always been lively and cheerful." When he went home in the evening, Song Renxi asked, "Can't you catch up with me?" Gu Meng nodded. "How about I chase you?" Song Renxi asked. Without even thinking about it, he replied, "Do you need to chase me?" He walked to me in a few steps. Song Renxi said firmly, "Okay, I will chase you." [This is the first time I write a fresh and sweet article. Alas, I am getting old, so I want to commemorate my high school life]