Machine learning USES run the gamut from game playing to fraud detection to stock-market analysis.

机器学习可以应用于各种目的，从游戏、欺诈检测到股票市场分析。

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Wal-Mart's stock has remained largely flat for most of 2010, but it continues to be a wealth-generating machine for its majority shareholders.

沃尔玛的股价在2010年大部分时间都保持平稳，不过对其大部分持股人而言仍然是摇钱树。

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On any given day, the stock market is a voting machine, "he said, and only" in the long run is it a weighing machine.

他认为在某些时候，股票市场仅仅是投票机，而要想使其发挥衡量的作用，则需要长期的时间。

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But other big pistons in the economic machine--institutional stock traders--are now basing more decisions on a different type of Wal-Mart effect.

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All three firms that signed up to distribute the machine have sold their initial stock.

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In the short term, the stock market behaves like a voting machine, but in the long term it acts like a weighing machine (i.e. its true value will in the long run be reflected in its stock price).

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