evolution

Charles Darwin's theory of evolution explains how species adapt to their environment over millions of years.

(Chinese) 查尔斯·达尔文的进化论解释了物种在数百万年的时间里是如何适应环境的。

The fossil record provides crucial evidence for the evolution of modern birds from small dinosaurs.

(Chinese) 化石记录为现代鸟类从小型恐龙进化而来的观点提供了关键证据。

Historians study the evolution of language to see how words change meanings over centuries.

(Chinese) 历史学家研究语言的演变，以了解单词的含义在几个世纪中是如何变化的。

The evolution of mobile phones from bulky bricks to slim smartphones happened in just three decades.

(Chinese) 移动电话从笨重的“大砖头”到轻薄智能手机的演变仅用了三十年。