adj.颠簸的；崎岖不平的
We had a hell of a trip on that bumpy road. 在那条崎岖不平的路上我们吃足了苦头。
After driving on the bumpy surface, it was nice to get back onto even ground. 驱车行驶过崎岖不平的路后，回到了平滑的路面上真是好极了。
