evolutions
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.
the evolution of plants and animals.
动植物的进化。
the theory of evolution by natural selection.
自然选择的进化理论。
Evolution is a process of gradual development in a particular situation or thing over a period of time.
a crucial period in the evolution of modern physics.
现代物理学发展过程中的一个关键时期。