中途退出欧元区的成本很难准确计算但是这个代价必然很沉重。

The costs of backing out of the euro are hard to calculate but would certainly be heavy.

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沃尔夫森经济奖邀请各界提出方案，好让某个或多个欧元区成员国有序退出欧元区。

The Wolfson economics prize invites the submission of ideas for the orderly exit of one or more members of the euro zone.

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真正的选择必须包括退出欧元区这一项。

And a real choice must include the option of leaving the euro.

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