DON'T BE SELFISH A Mother is admonishing her son. ----Now, John, don't be selfish. Let your little brother share the bicycle with you. ----But Mother, I do. I ride it down the hill, and he rides it up the hill.一位母親在勸告她的兒子。 "聽着，約翰，別太自私，讓你的弟弟和你共用一輛自行車。" "媽媽，我是讓他。我先騎下坡，他再騎上坡。"
