But central Banks already try to estimate the "output gap", the extent to which economic growth is above or below trend, when setting interest rates-and that's fiendishly difficult.

但是央行已经开始尝试评估“产出缺口，”来确定制定利率政策时，经济增长是否高于发展趋势的程度，这也是十分困难的。

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Now it is setting a very different trend.

如今，它又正在引领一个非同一般的“潮流”。

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Apple traditionally rolls out improvements to its iPod line in September to position the trend-setting portable media players for the year-end holiday shopping season.

苹果通常在9月份开展它的ipod的改进行动以便于将这个引领潮流的便携式移动媒体播放器放在年终的假日购物季节进行销售。

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In particular, brand marketers do not take Hispanic consumers seriously enough, especially their buying power or trend setting influence.

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General Motors has long suffered in trend-setting California because its cars have been anything but trendy.

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"We want to take this trend-setting model on a much larger scale, " he adds.

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