In such a sluggish recovery, the Fed can keep short-term interest rates low for longer without fearing inflation, even as commodity prices continue to rise.

在这样的缓慢复苏中，即使大宗商品价格持续上涨，美联储也可以在更长时间内将短期利率保持在较低水平，而无需担心通胀问题。

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With low expenses, you can live on what you earn and save, for much longer.

开销越低，你可以依靠自己的收入和存款过活的时间越长。

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A blueprint for low-carbon buildings is also being considered, and longer term the NHS could develop its own energy grid supplied by renewables on its land.

计划还考虑了一个低碳建筑物的蓝图，在更长期形式上，NHS将会自己通过可再生能源直接向自己的电网供电。

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But if oil prices stayed low for longer, there will have to be a fiscal adjustment, maybe cutting back on expenditures by as much as 3% of GDP.

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Currency traders are assuming that lower inflation will enable the Bank of England to keep interest rates low for longer, which in turn makes the pound less attractive to investors.

BBC: Pound falls after surprise dip in inflation

The experience of Japan since 1990 suggests that short-term rates can stay very low for much longer than people expect.

ECONOMIST: Buttonwood