该句使用分词结构补充结果状语增强表达效果。
Setbacks are not punishments, but opportunities to learn.
During his doctoral studies, Kai-Fu Lee achieved outstanding academic success. By utilizing statistics, he significantly improved speech recognition rates, and His doctoral dissertation was published in an international journal, stunning the US tech community. As a star student, his life at Carnegie Mellon University seemed flawless, until a summer course presented him with a significant setback. In the summer of 1983, Lee took a summer job teaching computer science to 60 of Pennsylvania's brightest high school students. He thoroughly enjoyed this period, dedicating himself to lesson planning and developing various teaching methods. However, upon receiving his salary and reading student evaluations, he discovered students felt his teaching was "like a lullaby." This feedback was a heavy blow to him.
Nevertheless, Lee did not lose heart. Instead, he embraced failure as an opportunity to learn. This mindset led him to success; in his subsequent career, especially after returning to China, he delivered thousands of speeches, a feat largely attributed to the practice and lessons learned during his student years.
挫折并非惩罚，而是学习的机会。
李开复在读博期间表现优异，他利用统计学显著提高了语音识别率，其博士论文发表在国际期刊上，令全美科技界为之瞩目。作为一名出类拔萃的学生，他在卡内基梅隆大学的生活本该顺遂，却因一次暑期课程遭遇了挫折。1983年暑假，李开复承担了一份暑期教职，负责教授宾夕法尼亚州60名顶尖高中生的计算机课程。他非常享受那段教学时光，每日潜心备课并钻研各种教学方法。然而，当他领取薪水看到学生评语时，才发现学生评价他的教学“像催眠曲一样枯燥”，这让他深受打击。
尽管如此，李开复并未气馁，而是将失败视为成长的契机。正是凭借这段经历带来的磨炼，他在后来的职业生涯中，尤其是在回国后，能够成功完成上千场演讲，这无疑得益于学生时代的这段深刻练习。