1.So the bumpiness , the rising high altitude, and the long duration of these two things made this short distance of the road the toughest.
崎岖不平的道路，逐步升高的海拔，和很长的持续时间使这段路程成为了最艰难的一段。
2.The tiny bumpiness of the wire is enough to make the current flow in little curves, distorting the magnetic field.
导线的微小凸起足以让电流流经微小的曲线，造成磁场扭曲。
3.On one occasion, I noticed that when I was hymning to the motorcycle, my voice was twisted due to the bumpiness of the road surfaces.
有一次，偶然发现当我骑车随意吟唱时，声音会因为路面的颠簸而被扭曲。
4.There is still some bumpiness ahead for private equity firms.
也许这对私人投资公司来说还有一段崎岖的路要走。