And if increasing foreign demand for the renminbi pushes up its value, China's export-led growth model - which relies on an undervalued currency - may become unsustainable.

而如果外国对人民币需求的上升推高人民币的币值，中国的出口导向型增长模式(这种模式有赖于人民币低估)可能会变得不可持续。

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They use a baseline model that assumes a given growth rate and an unsustainable fiscal policy.

分析人员研究时采用一个基准模型（增长率既定），并设想一套不可持续性财政政策。

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As that model turns out to have been unsustainable, the resulting retrenchment in finance will curb overall growth.

随着这种模式逐渐不再具有可持续性，金融业的紧缩将阻碍经济整体的增长。

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(SAYING) Venezuelan economist Orlando Ochoa says nationalistic slogans and socialist rhetoric cannot disguise what he sees as a simple truth: that the Chavez model is unsustainable.

VOA: standard.2010.08.06

The American company admitted that its business model was unsustainable and said that it would sell assets to raise cash.

ECONOMIST: Macs to the wall

"We always need to focus on what the benefits to patients are, because otherwise this business model is unsustainable, " he says.

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Even Painter now sees that his original business model was unsustainable.

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