Logic dictates that our ancestors could not have held a yearly festival until they figured what a year was.

依照逻辑推论，我们的祖先在弄清1年是什么意思之前，不可能举行过每年一度的节庆。

《柯林斯英汉双解大词典》

Our ancestors merely made use of their hands to change nature.

我们的祖先只凭双手改造自然。

《新英汉大辞典》

If we look back at our ancestors, we'll see that they had a lot more hair on their bodies than we do now.

如果我们回过头看看我们的祖先，我们会发现他们身上的毛发比我们现在多得多。

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Now we know that genetics makes this connection even deeper and we are linked to our ancestors by DNA.

VOA: special.2009.12.01

It's not surprising, therefore, that people should be eating more fruits and vegetables, and our ancestors were eating much more.

因此毫无疑问,人们应该吃更多的水果和蔬菜,而我们的祖先吃的更多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The laws are not only like our parents, they are like our ancestors, as we might say, who are owed respect and piety.

法律不只像是我们的父母，也像是我们的祖先，我们可以说，他们值得我尊重与孝敬。

耶鲁公开课 - 政治哲学导论课程节选

Our ancestors healthy respect for fire was confirmed in reality and enshrined in myth.

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Our ancestors made spears, slings and bows and mastered their use in hunting and warfare.

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In fact, there is no need to imagine our ancestors reacting with such absurdity.

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