These pictures show young readers what led Darwin to form his great discovery: the evolution of species through natural selection.

VOA: special.2009.02.27

It's there whether it's through God, whether it's through evolution.

是与生俱来的，无论是上帝赐予的，还是进化产生的。

哈佛公开课 - 幸福课课程节选

More particularly, these are things that through the course of human evolution have been dangerous to us.

更特别的是，有些东西在人类进化后,对我们很危险。

耶鲁公开课 - 心理学导论课程节选

He developed the theory of evolution that life on Earth developed through the process of natural selection.

VOA: special.2009.12.16

We, too, understand the relevance of what we call "the society function."] Rather it must be elucidated in its full extent through the problem of the evolution of literature.

你们不要以为我们很幼稚,我们也明白社会功能的意义是什么],但是我们必须用,文学进化的角度来解释它的功能。

耶鲁公开课 - 文学理论导论课程节选

A year later,Darwin would complete his detailed study of evolution through natural selection.

VOA: special.2009.12.01

That theory is known as evolution through natural selection.

VOA: special.2009.02.25

As a result,he was almost upstaged by a younger colleague, Alfred Russell Wallace, who developed the theory of evolution through his own research.

VOA: standard.2009.11.25

On stage,Milner tells the story through music. Darwin's theory of evolution through natural selection inspires some tunes,and episodes in his life inspire others.

VOA: standard.2009.11.25

Those infrared emissions will allow the telescope to peer through cosmic dust and gas to see things like the evolution of early stars and galaxies.

VOA: standard.2009.05.14