一些研究结果得出的数字要低一些，但是这些研究并没有去实实在在的称量样本的体重，而是采取询问的方式，所以里面在水分也在所难免。
Some studies yield lower numbers, but since they typically ask people how much they weigh, rather than weighing them, scepticism is in order.
研究人员希望发现对于男性和女性来说会有最多子女的最佳年龄，所以他们带着这一想法去浏览数据，结果是对于两性来说这个数字不同。
The researchers wanted to find the most beneficial ages for both men and women to have the most offspring, so looked at the data with that in mind and came out with different Numbers for each.
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