The evolution of North American horse, which was once presented as a classic textbook example of gradualevolution, is now providing equally compelling evidence for punctuated equilibrium.
北美马的进化，曾经被作为一个经典的渐进演化的教科书案例，现在为点断平衡说提供了同样令人信服的证据。
2
Some scientists suggested that there had been a gradualevolution of life on earth.
一些科学家认为，地球上的生命是逐渐进化的。
3
With the gradualevolution of technology, higher-bandwidth access services in the future will become a reality.