New US research indicates that the absolute humidity, which measures the amount of water present in the air, is the key to reducing the spread of flu.

美国最新研究表明，空气绝对湿度与流感病毒的传播有密切关系。

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They also suggest that, as development has spread, there has been a steady fall in the proportion of the world's population in extreme poverty, although also a rise in the absolute number up to 1980.

他们还认为，随着发展范围的扩大，极端贫困人口在全球人口中所占比例一直在稳步下降，尽管截至1980年，极端贫困人口的绝对数量也曾有过一次上升。

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However , These sports events have been spread little in the word , and the absolute level is low.

表明， 奥运会女子项目历史短， 新项目多， 绝对水平低。

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Shaman converted the guinea pig data from relative humidity to absolute humidity and found the link between air moisture and flu spread got much stronger.

CNN: Study: Humidifiers may help fight flu