The Columbia River in the us Northwest lost about 14 percent of its volume from 1948 to 2004, largely because of reduced precipitation and higher water usage in the west.

在1948年至2004年间，位于美国西北部地区的哥伦比亚河的流量减少了约14%，这主要是由于降水量减少以及美国西部用水量增加。

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Researchers at the University of British Columbia found that among business managers in the us and Canada, those who take greater risks are the most successful.

不列颠哥伦比亚大学研究人员发现，在美国和加拿大的公司经理中，敢冒更大风险者最成功。

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The change sets us back to mid-January in terms of morning light, according to Michael Terman, a biological rhythms expert at Columbia University.

根据来自哥伦比亚大学（Columbia University）的生物节奏专家Michael Terman的 观点，就从早晨的日光这个角度来说，这种时间的调整把我们带回到了1月中旬。

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And so, Columbia helps us pay our housing so, because it is very expensive to live up here.

而哥伦比亚大学帮助我们付了房租，因为在这儿住实在太贵了。

上西区的人们 - SpeakingMax英语口语达人

Forty-two US states, the District of Columbia and the US Virgin Islands participate in the Powerball lottery.

BBC: Powerball lottery: Missouri man claims share of jackpot

Hillary Clinton, senator from New York, Democratic candidate for president, joining us from Columbia, South Carolina.

NPR: Despite Polls, Hillary Clinton Is Optimistic About S.C.

We signed deals with Princeton, Columbia and Wellesley to have interns join us every summer, and we started hiring graduates willing to look beyond America.

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