Mayonnaise: Unopened, refrigerated Kraft mayonnaise can be kept for 30 days after its expiration date or 3-4 months after opening, the company told ShelfLifeAdvice.

蛋黄酱：卡夫公司称它们生产的蛋黄酱在未开封的情况下可以保存至保质期后30天，开封 后仍可以保存3-4个月。

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Still, analysts are hoping a last minute rush by buyers to qualify for the extended tax credit before its June expiration could lift sales in the coming months.

不过，分析人士也期望，在延长至六月到期的税收抵免政策结束前，购房者会抓住最后机会竞相申请，从而带动这几个月的房屋成交量。

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According to the website of the US embassy in Poland, Polish citizens also need to apply for thenew visa within 12 months of the expiration of the old visa.

据美国驻波兰大使馆官网消息，波兰公民也需在旧签证失效时间不足12个月时申请新签证。

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Home Automation president Jay McLellan described how his company was targeted by a holding company that had bought up dormant patents six months from expiration, then used them to sue large and small producers.

FORBES: At CES, Companies Large and Small Bash Broken Patent System

He had kept a school at Leicester about nine months at the expiration of which period he suddenly decamped, in consequence of a charge hanging over him of having stolen some books.

ECONOMIST: The provinces

The time horizon on this trade is a bit longer than the original, with roughly 8 months remaining to January 2012 expiration.

FORBES: Bulls Board AMR, Bears Raid Metals & Miners