The G20 statement added that members should develop credible strategies for reducing stimulus spending and to allow ultra-low interest rates to rise to more normal levels.

20国集团的报告中还说道，会员们应该制定更加可信的政策来减少刺激性的支出，让极低利率上升到正常水平。

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The second factor is the rise of the ultra low cost handset, which is set to take an increasing share of the world's handset market.

第二个因素是超低价手持设备的增多，它们会占据全球手持设备更多的份额。

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And in any case the ultra-low central-bank base rate will eventually have to rise, pushing up borrowing costs.

ECONOMIST: Houses and prices