求翻译：我从小就有一种不服输，不会轻言放弃的精神。印象最深刻的就是我大三时的一门限选课《经济学英语文献选读》，这门课是由我们的导师开授的。该门课要求每个学生完成一篇经济学英语文献的阅读整理后做一个presentation。并要求做出这篇paper的mind map；还要就paper的内容，自己的感想及收获做一个PPT上台展示。我要做的是paper是Vernon Smith 的《Experiments in Economics》，差不多有30页，但是只有周六周日两天时间。真的是一个不小的挑战，但是沮丧是没有用的。是什么意思？

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