It is thanks to an ageing population and soaring health and pension costs that America's debt ratio will still be rising in a decade.

在美国，归因于其老化的人口以及飙升的健保及退休金成本，债务比率在未来十年仍将继续攀高。

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There are many ideas for achieving this, such as reviving its housing industry by getting it to build properties suitable for an ageing population, and beefing up its health-care sector.

为了达到这一目标，出现了很多的想法，比如为年老的人建筑更舒适的住宅而复兴房地产业，扩充健康医疗部门不足。

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And Canada's fiscal health will soon come under strain from the treasured but expensive public health-care system and an ageing population.

而该国深入人心却又昂贵的公共医疗体系和正趋老龄化的人口将很快给加拿大的财政带来压力。

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But look farther ahead and a much bigger gap appears, as an ageing population needs ever more pensions and health care.

ECONOMIST: America's budget deficit

Controlling federal spending depends primarily, in the long run, on taming entitlements Medicaid, Medicare and Social Security which are being driven by an ageing population and inflation in the cost of health care.

ECONOMIST: Taxes, spending and the deficit

They worry, and rightly so, that America faces budgetary meltdown, as its ageing population places unbearable strains on pensions and health-care systems.

ECONOMIST: America's stimulus plan: Stimulus and the Senate | The