The principal differences between the two calculations are that they use different models, and made different assumptions about what countries will do after their current targets expire, said Jones.

琼斯说，这两种计算方法的主要区别在于使用不同的模型，以及对各国在当前目标过期后的行动作出的不同预测。

youdao

At a joint news conference, Mr.Brown praised the current Pakistani army offensive against Taliban targets in the Swat valley.

VOA: standard.2009.05.13

The first phase of the Kyoto Protocol expires in 2012 and the current talks are aimed at setting in place new legally binding emissions targets for the decade to come.

VOA: standard.2009.11.04

Peter Pham, Associate Professor of Justice Studies, Political Science and Africana Studies at James Madison University, says conditions in Somalia threaten security and stability of the Horn of Africa: "Even without toppling the TFG, al-Shabaab has already achieved a major objective by securing a territorial base from which like-minded militants and terrorists can carry out attacks elsewhere, especially against targets in the Arabian Peninsula as well as participating in the current violence against Somalis,".

VOA: standard.2009.06.26

The company has been actively seeking new opportunities, but most of the current targets are in northern Russia or the Barents Sea.

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They're also determined to maintain their current traffic targets while writing one less post a week.

BBC: One couple's mission to find a better work/life balance

Explicit current-account targets have their shortcomings, not least that policymakers can influence them only indirectly.

ECONOMIST: Currency wars