Summer lasts from May to July in China. last: v.

在中国，夏天从五月份持续到七月份。

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But in the last twenty years, H.I.V.and the collapse of the Soviet Union helped raise death rates in thirty-seven countries worldwide.

VOA: special.2010.05.05

They believe the simian immunodeficiency virus,S.I.V., probably crossed from chimpanzees to humans in the last one hundred years.

VOA: special.2009.09.08

Although he stressed he had never had a problem with alcohol, Harris said he had decided to have his last drink at the V Festival last year.

BBC: Harris gave up drink 'for fans'

In the same quarter last year, V earned 96 cents per share.

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The Supreme Court tackled these questions last year in Bilski v.

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