举个例子，当我锻炼时我遇到了一些挫折，持续锻炼几周后我经常感到像生病一样。

For example, I've had some setbacks when it comes to my exercise habit. I often seem to get sick after a few weeks of continuous exercise.

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随着美国国内房价的下跌和信贷紧缩的持续加强，一些人开始担心美国可能经历像日本上个世纪90年代早期经济泡沫破灭后那样的十年滞胀。

As FALLING house prices and tightening credit squeeze America's economy, some worry that the country may suffer a decade of stagnation, as Japan did after its bubble burst in the early 1990s.

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