N-UNCOUNT
進(jìn)化
Evolution is a process of gradual change that takes place over many generations, during which species of animals, plants, or insects slowly change some of their physical characteristics.
例句
...the evolution of plants and animals.
動(dòng)植物的進(jìn)化
...the theory of evolution by natural selection.
自然選擇的進(jìn)化論