大约100年前,美国密苏里州伦道夫县有一个叫克拉克的村子,村子里有一户贫困人家,家里有一个非常聪明的小男孩。一天,男孩的妈妈让他去把30只鸡蛋卖给邻居。临出门前,妈妈对小男孩说“:孩子,这30只鸡蛋能卖40美分,如果邻居嫌贵,就卖35美分。”孩子听了妈妈的话就拿着鸡蛋到了邻 About 100 years ago, Randolph County, Missouri, USA, had a village called Clarke, a poor family in the village with a very smart little boy. One day, the boy’s mother asked him to sell 30 eggs to his neighbors. Pro before leaving, the mother said to the boy: “children, these 30 eggs can sell 40 cents, if the neighbors are too expensive, they sell 35 cents.” Children heard her mother took eggs to the neighbors