在上网人数增加的年份中，幸福指数更低，而不是相反。

Years with a larger increase in online usage were followed by years with lower wellbeing, rather than the other way around.

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在一项对200个国家33年内体重指数趋势的研究中，科学家们发现，世界各地的人们体重越来越重，而这主要是由于农村地区体重指数的增加。

In a study of 33 years of trends in Body Mass Index across 200 countries, the scientists found that people worldwide are getting heavier and that most of the rise is due to gains in BMI in rural areas.

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没有分区，将当前数据放到可以处理的正确位置需要许多开销，这种开销是随着机器的增加呈指数（不是线性）增长的。

Without partitioning, much overhead is incurred from getting the current data to the right place for processing, and this overhead grows exponentially -- not linearly -- as more machines are added.

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