人们数百年来，已经尝试过去使用，好吧，大概150年内，去使用随机步数去模拟股市运作。
People have attempted, for several hundred years now, to use, well, maybe a 150 years, to use random walks to model the stock market.
人们数百年来，已经尝试过去使用，好吧，大概150年内，去使用随机步数去模拟股市运作。
People have attempted, for several hundred years now, to use, well, maybe a 150 years, to use random walks to model the stock market.
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