Kiosks could hold more titles than physical video shops and would never be out of stock.

下载亭可以存放比音像商店更多的电影，并且永远不会缺货。

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So it never happened that the products are out of stock.

因此也就从没有发生过消耗品缺货的现象。

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Libraries have books on every subject imaginable, and since they rotate their stock and constantly get new books, you'll never run out of reading materials.

图书馆囊括了各类主题的书，由于它们要保持库存，会不断地引进新书，你永远不用担心没有书看啦。

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The guys who sold out of the market in 1987 following the stock market crash and vowed never to invest in stocks again.

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This sudden surge of requests, which were cancellations for a large batch of orders that the machine had never actually sent out, acted like a denial-of-service attack on some parts of the New York Stock Exchange.

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