1989年,美国斯坦福大学一名家境贫寒、学习成绩优异的学生默巴克,为减轻父母的工作压力,一边读书一边勤工俭学。他靠帮助学校收发信件报纸、修剪草坪、打扫卫生等简单的校内劳动,赚取一些微薄的经济收入。后来,默巴克发现学生公寓的卫生状况总是十分糟糕,就去找学生公寓的校 In 1989, a poor student at Stanford University in the United States, Merck, a student with outstanding academic records, worked hard to study while alleviating the pressure of his parents’ work. He relies on helping schools to send and receive letters and newspapers, mowing lawn, cleaning and other simple school labor, earn some modest economic income. Later, Mombake found that the health status of student apartments is always very bad, they went to the student apartment school