evolve /ɪˈvɒlv/ CET4 TEM4 ( evolving, evolved, evolves )

• 1. 

  V-I When animals or plants evolve, they gradually change and develop into different forms. 进化

  例：

  The bright plumage of many male birds was thought to have evolved to attract females.

  许多雄鸟的鲜艳羽毛被认为是为吸引雌鸟而进化来的。

  例：

  Birds are widely believed to have evolved from dinosaurs.

  鸟类普遍被认为是从恐龙进化而来的。

• 2. 

  V-T/V-I If something evolves or you evolve it, it gradually develops over a period of time into something different and usually more advanced. 使…逐步发展; 逐步发展

  例：

  ...a tiny airline which eventually evolved into Pakistan International Airlines.

  …最终发展成为巴基斯坦国际航空公司的一家小型航空公司。

  例：

  Popular music evolved from folk songs.

  流行音乐由民歌演变而来。