The the following story is one of my friend's.

     She said:I am already 18 years old, but the memory of my childhood is still like an unforgettable sweet dream.
One day, all my family went to climb a mountain. There father told my elder sister and me that the first one to get to the top of the mountain would be given a toy. Hearing this, we began to run up. At first I kept ahead, but a few minutes later my sister was ahead of me. However, I didn't give up. That toy attracted me to run forward, In the end I reached the top first.
     On the top we enjoyed the beautiful scenery and had a picnic. At dusk, we went down the mountain happily. I was the happiest one, because I not only got a toy train but also knew that one shouldn't give up readily.