在您的工作区内创建并保存自己的程序数据。
大自然又在这里玩弄她保存自己的老把戏了。
Here is nature once more at her old game of self-preservation.
人们在面对压力时会很自然地选择保存自己,这是人类的天性。
It’s human nature to try to survive when put under pressure.
Animals that are altruistic even to the point of dying to help another, those genes will, under some circumstances, be preserved over the genes of people who are less caring.
有强烈利它主义的动物,甚至为其他动物牺牲自己,这些基因在某些情况下,就会被保存下来,而那些不关心他人的基因则不会。
Of course that depends on the accuracy of the self- reports that people are making on their own, and as you'll see in just a minute, there are errors in that and some of you may have experienced some of that yourself in keeping the dietary records.
当然这还取决于每个人自己完成的,个体调查的准确性,正如你马上会看到的,这其中有误差,而你们也可能经历过一些,你自己保存膳食记录时的误差
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