n.碰撞(撞击；颠簸；混动空气)
And walk through this bumpiness road,in the solemn song of sorrow. 在这悲壮歌声中，走过这崎岖险阻的道路。
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。
Given the bumpiness of the road ahead, you might be better off with a crash helmet. 考虑到你面前这条颠簸的道路，你最好还是配个头盔吧。
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。
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。
