These episodes of rapid evolution are separated by relatively long static spans during which a species may hardly change at all.

这些快速进化的阶段被相对较长的静态跨度分隔开来，在此期间，一个物种几乎不会发生任何变化。

youdao

Progress was rapid-only eight years separated Gagarin's flight from the infinitely more complicated mission that put Neil Armstrong and Buzz Aldrin on the surface of the moon.

进步是飞快的，加加林飞行仅八年后，人类完成了更复杂的行动，将宇航员尼尔·阿姆斯特朗和巴兹奥尔德林送达月球表面。

youdao

None of this can be separated from rapid and all-encompassing technological change that is altering both our personal and institutional relationships.

FORBES: What American Dream?