adj.顛簸的；崎嶇不平的
We had a hell of a trip on that bumpy road. 在那條崎嶇不平的路上我們吃足了苦頭。
After driving on the bumpy surface, it was nice to get back onto even ground. 驅車行駛過崎嶇不平的路后，回到了平滑的路面上真是好極了。
