伯南克先生还说，短期内产出增长率可能会“稍微低于”自然趋势水准。但是，他还清晰地指出，预计一年之后，经济增长会回到持续性增长率上面。

Mr Bernanke said output growth could be "modestly below" its trend rate in the very short term, but made clear that he expected the economy to be growing at its sustainable rate within a year.

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对金价反弹持续性的争论根源在对黄金未来供给和需求变化趋势的不同认识。

At the root of this debate about the durability of the gold-price rally are different beliefs about the future path of demand and supply.

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自上世纪90年代中期以来，在有识之士的评论中，对全球宏观经济趋势可持续性的担忧一直是一个不变的主题。

Concern about the sustainability of global macroeconomic trends has been a persistent theme in intelligent comment since the mid-1990s.

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