买入返售证券；

The purchases of resold securities;

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但有些用户发现事实完全相反：零售商cookie能让某些产品涨价，造成一种被称之为“消极返现（negative cashback）”现象。

But some users have found the opposite to be true: Retailer cookies trigger jacked-up prices for some items, causing a phenomenon one man calls "negative cashback."

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