And the huge amount of Japanese debt rolling over this year need not be a problem.

今年日本必须要重新发行的巨额公债不一定会是问题。

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In the current sovereign-debt crisis that is rolling over Europe, speculators, and especially credit-default swaps, are suffering another assault.

在目前席卷欧洲的主权债务危机中，投机者，尤其是信用违约互换正遭受又一场攻击。

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While it can seem that the city is intent on stream rolling over its past, you can still see traces of old Edo.

即便这个城市热心踩着它的过去走向未来，你却依然能看到古江户的痕迹。

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Google (Nasdaq: GOOG) mulled rolling out Voice-over-Internet Protocol, or VoIP, features to its new fiber network, which Google began lighting up last month, said Milo Medin, vice president of Google Access Services.

FORBES: Links 5 Dec: Google's Phone Over Fibre Explains Slow Economic Growth

Failure to reach agreement on the seven-year budget would mean the EU rolling over annual budgets - a method that would be more expensive and would complicate long-term projects.

BBC: EU budget: Leaders edge towards compromise deal

We recently analyzed the returns of a hypothetical global portfolio as well as a hypothetical US-only portfolio ( 1) over rolling 3-year periods between January 1, 1999 and December 31, 2011, with each rolling period resetting monthly (see graph below).

FORBES: Why Global Diversification Still Makes Sense