Multiple cache mode. Support for setting cache expire time.

多种缓存模式，支持设置缓存有效期。

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But recent reports showed U.S.consumer confidence dipping and consumer spending down as government subsidies to purchase new cars have ended and tax credits for first-time home buyers are soon to expire.

VOA: standard.2009.11.01

Fearful that those rights would expire by the time Mr. Scorsese was available, he brought on director Jonathan Demme, who subsequently left over creative differences.

WSJ: Making a Bob Marley Movie

It even set a loose deadline of a decade or two - due to expire by the time Kurt is in his early twenties at the latest.

BBC: What Future For Kurt?

There is however no real prospect of Mr Berlusconi being jailed, as he will exercise his right to appeal and the case will actually soon expire under a time limit, the BBC's Alan Johnston in Rome reports.

BBC: Italy court upholds Berlusconi tax fraud conviction