It has been proved that sorting out your desk can improve your learning and working efficiency.

事实证明，整理你的桌子可以提高你的学习和工作效率。

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It has been proved that Low Till Farming increases harvests and reduces water use, and this method reduced the need for chemical products because there are fewer unwanted plants.

实践证明，低耕农业提高了作物产量，减少了用水量；而且，由于有害植物变少了，这种农业对化工产品的需求也降低了。

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It has been proved that the driver is not related to the accident.

已证实那名司机与这个事故无关。

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Once again, it has been proved that it only requires the threat of violence to hold India to ransom.

BBC: Worrying victory for India's extremes

It has already been proved that deaf birds, who cannot hear their own voices, soon develop a distorted song.

BBC: NEWS | Science/Nature | Sleep helps birds sing better

But some neurologists say it has not yet been proved to help patients recover from stroke, even as stroke drugs with better data were turned down.

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