以下是一個足印故事的英文版：
Once upon a time, there was a little boy named Jack. He loved to run and play outside, but he was always careful not to trample on any animals' footprints. One day, he accidentally stepped on a footprint left by a giant's foot, and he felt very scared. However, the giant suddenly appeared before him and said, "I like your care and respect for my footprint. I'll teach you some moves today, so you can become a strong and brave boy." From then on, Jack and the giant became good friends. They trained together every day, and Jack grew stronger and braver. One day, when Jack was playing outside, he accidentally stepped on a beautiful butterfly's footprint. He felt very sorry and decided to leave it alone. But the butterfly suddenly appeared before him and said, "You are a kind boy who respects nature and others. I will give you a gift today, so you can help others more." From then on, Jack began to help others around him, and his life became more meaningful and joyful.
This story teaches us that we should respect the footprints of others, nature, and ourselves. When we do so, we can make our lives more meaningful and joyful.