与单独飞行的鸟类相比，以V形飞行的加拿大鹅在没有休息的情况下可以多飞行百分之七十的距离。

Canada geese flying in a V shape can fly seventy percent farther without having a rest than the birds flying alone.

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研究发现，有百分之七十的情况符合精神障碍的诊断指标。

Seventy percent of subjects met diagnostic criteria for a current mental disorder, the researchers found.

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随着时间的推移，更有百分之七十的鸟类物种从小的森林碎片上销声匿迹。

Over time, as much as 70 percent of bird species disappeared from the smallest fragments.

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This was a process that was perfected on an industrial scale by the company Genentech in California, in the 1970s.

这就是一个完美的工业规模的流程,是加州的一个基因技术公司在七十年代,所完成的

耶鲁公开课 - 生物医学工程探索课程节选

I think that many years ago, in the early 90s or 80s, or the 70s even, it was a very dangerous city.

我想很多年以前的八九十年代或者甚至七十年代，它是一个非常危险的城市。

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In the 1960s and 70s central banks around the world were inflating the currency.

在六十年代和七十年代，世界各地的中央银行,都在使货币上涨。

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