Blood pressure may become elevated, and although the increase is not always dramatic, it can be dangerous for people at risk for hypertension or other cardiovascular problems.

血压可能会提高，尽管提高幅度一般不大，但是对于那些高血压或者心脏病人来说，这就很危险了。

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In the subsequent years there was a trend of higher yields in tilled plots, although the increase was non-significant.

在后来的几年中，在耕作过的地里年产量曾有增长趋势，不过这种增长并不明显。

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Although the increase, the second in three months, was widely expected, many commentators think it was a mistake.

这是欧洲央行在过去三个月里第二次加息。尽管此举符合市场普遍预期，但许多评论家仍认为此次加息是一个错误。

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Risley says the challenges remain daunting, although there are hopes the fighting may be over before winter, when the refugees' needs will increase sharply, and weather hampers aid deliveries.

VOA: standard.2009.06.19

Although the increase had been anticipated by some analysts, many were surprised by the size of it.

BBC: Bank of Japan increases asset purchase programme

Although the increase in cotton prices affected virtually every apparel company over the past year, companies like Aeropostale were hit especially hard.

FORBES: Aeropostale Resurrection Taking Stock To $19

"Although the increase in breast density doesn't happen in all women, we can't predict who's most at risk, " said Dr. Mary Laya, one of the study's co-authors.

CNN: Health - Hormone replacement may influence mammography accuracy