This Sunday, I went to Youth Park, and I had a special experience. I parks, we could see a lot of people walking their pets, and most of them are dogs. On that day, a girl caught my eyes, not for her good looks but for her doing a special thing. At that time, she was walking a special pet, a tortoise. The tortoise walked really slowly, so she followed it one small step by one small step. The tortoise wanted to go to grassland, but she would preclude it by her feet. In other words, she controlled the walking path of her pet with her feet.
In my opinion, she should let her tortoise have a walk on grassland.
My reason: Since squirrels can run quickly on grassland, why cannot a tortoise have a walk slowly on grassland?