店铺对于全额退款的规定是：您必须在购买商品后两周内退货。

For a full refund, store policy is that you have to return merchandise 2 weeks from the time it was purchased.

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但是在过去的11周当中，正当希腊经济动荡，濒临债务违约边缘之时，商品价格出现了下滑。

But in the past 11 weeks as Greece teetered on the edge of default, commodity prices have dropped.

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周行长赞赏上世纪40年代凯恩斯提出的以商品为定价基础的国家货币——Bancor的设想。

Mr Zhou praised John Maynard Keynes's proposal in the 1940s for an international currency, the "Bancor", based on commodities.

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