Facebook is in a particularly difficult predicament. Seventy percent of its 200 million members live outside the United States, many in regions that do not contribute much to Facebook's bottom line.
Facebook现在处于一种相当窘迫的境况，其2亿用户中有70%是生活在美国以外的，而且有很多是来自对公司盈利贡献甚少的地区。
Of course, it’s not a certainty that one can live a long-life by continuously thinking active, and there are some other factors contribute to longevity.
当然，不断运用脑筋也不一定寿命长，还有其他许多因素。
Our value depends not on how long we live, but on how much we contribute.
人的价值，不在寿命的长短，而在贡献的大小。
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