例如，人类的平均寿命在几千年里几乎没有改变。
For example, the average duration of human life has hardly changed in thousands of years.
然而，在某些方面几乎没有改变，特别是在态度方面。
In some ways, however, very little has changed, particularly where attitudes are concerned.
人类使用石屑超过二百万年，但在那段时间里，人类的生活几乎没有改变。
Human beings used stone chips for more than two million years, but human life changed very little in that time.
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