After three decades of painstaking research, the Stanford psychologist Carol Dweck believes that the answer to the puzzle lies in how people think about intelligence and talent.

经过三十年的辛苦研究，斯坦福心理学家Carol Dweck相信答案在人们对才华和智慧的看法上。

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More than three decades after we built the last of our aging 104 nuclear plants which provide about one-fifth of U.S. electricity, future updates and expansions are more uncertain than ever.

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