Two friends were having an adventure(历险). They were walking a desert(沙漠). They had fight, and the taller friend hit the shorter one. The shorter one was hurt, but without (say) anything, he just wrote in the sand: "Today my best friend hit me." They went on (walk) until they found an oasis(绿洲), where they decided (take) a bath. Suddenly, the shorter one fell into the river and started sinking down, but the taller one saved him. After he (get) out of the river, he wrote on a stone, "Today my (good) friend saved my life." The friend who hit and (save) his best friend asked him, "After I hurt you, you wrote in the sand and now you write on a stone. Why?" The shorter one replied "When someone hurts us, we should write it down in the sand winds can blow it away. But when someone does something good us, we must write it on the stone so it can last for a long time."
