笑话一则（译文）4

译自德语by me，  英语由gemini proofread过 

Stefan comes home from school with an incredibly bad report card. His parents scold him mercilessly, but the teenager uses a quick breather to ask the decisive question: “Honestly, what could be the reason for this? Is it down to environmental influences or hereditary factors?”

斯特凡把糟糕透了的成绩单从学校带回家。他的父母给了他个当头棒喝。但是这个十来岁的年轻人歇了口气反问道：“说老实话，是什么给我造成这个样子的？是我的生活环境还是遗传因素？“

p. 2.  ドイツ語ジョーク集 学校編 日本語対訳付き.