以下为句子列表：
英文: Flatten the blinds then wipe with a 1:9 dilution of L.O.C. Multi-Purpose Cleaner using a towel. Carefully wipe the blinds in an up-and-down motion.
中文: 先将百叶簾开至平方式，然后用毛巾沾上已1:9稀释的清洁剂，在百叶簾由上而下，小心地抹。
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英文: It was an up-and-down day on Wall Street with the Dow falling below 12,000 points before an eventual rebound and gain.
中文: 华尔街经历了大起大落的一天，道指数在跌破12000点后最终反弹并收高。
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英文: Johnson and his Oxford colleagues David Lamper, Paul Jefferies, Michael Hart and Sam Howison have further studied a binary aspect of the game: the up-and-down movements in a market irrespective of magnitude, which is simpler and computationally practical.
中文: 强生和他的牛津同事兰珀、杰夫里兹、哈特及豪伊森进一步研究这个游戏的二元观点，也就是只管市场里的上下移动，而不管移动的大小，那是比较简单并且可以计算的部分。
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