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These new results suggest that over this time, the cancer must have evolved the unusual ability to capture mitochondria from its host animal.

这些新的结果表明，这段时间过后，肿瘤就进化出从它的宿主身上获取线粒体的非同寻常的能力。

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America is now the world's number one producer of oil and gas, helping to save drivers about a buck-ten a gallon at the pump over this time last year.

美国现在是世界上头号石油和天然气生产国，这使驾驶人们自去年这个时候以来每加仑节约1美元10美分。

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"People in the highest quartile of leptin had only a six percent risk of developing dementia over this time, over 12 years,whereas people in the lowest quartile had a 25 percent risk of developing dementia,"

VOA: standard.2009.12.30

Over this time period, that portfolio had an expected return of something like a little over 9% and it had a standard deviation of a little over 9%.

在这个时间段，这个投资组合的预期收益率是,9%多一点%,标准差是9%多一点。

耶鲁公开课 - 金融市场课程节选

So here we've got the continuing,evolving over time-- this is all taking place in France-- the personality of Napoleon in France.

所以这是持续的，随时间进化的…,这都是发生在法国-,法国拿破仑的人格。

耶鲁公开课 - 死亡课程节选

They are not useful in discussing the distribution of total income over this time period.

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This tentative stance could likely further restrict economic and stock market growth over this time period.

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Is it possible over this time period that we averaged closer to 12%?

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