求翻译：I know that one of your graduates spent months on the slopes of Mount Kilimanjaro searching for sustainable development models to bring to women and families and help them lift themselves out of poverty. Another of your classmates was studying in China last year when the devastating earthquake struck, and that has led to work ever since to deliver supplies and assistance to villagers in remote areas. International students have gone on to fight for human rights in Rwanda, build civil society in the nation of Georgia, run businesses, and lead governments. And many of you, I know, used social networking platforms to make Barack Obama the President of the United States of America. (Applause.)是什么意思？

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