SD冠军锦标赛｜美国藤校演讲与辩论赛中国选拔赛

In 2008 I stepped into the chairman role of Twitter. 2008年我成为推特的老板 There was an interesting thing that was happening. 发生了一件很有趣的事情 The entire market was crushing. 整个市场都开始下滑 So, all of these financial obstructions that we 所以我们所有的金融障碍 had built up were suddenly being swept away. 都忽然消失了 There is no better time to start a new company ...

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Hi, everybody. Today, I want to talk with you about the crisis in Puerto Rico – and why it matters to all of us. Puerto Ricans are American citizens, just like folks in Maine or Oklahoma or New Mexico. And over the last decade, Puerto Rico has suffered through a deep and painful recession – but unlike the rest of the United States, it hasn't recovered. Today,...

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