podróżować trudną drogą

It's going to bump along the bottom for some time.

He went bumping along the road in his car, puzzled.

The Jeep was bumping along a back road in the middle of the night.

After bumping along the sandy road for a couple of miles, the car stopped.

The car bumped along the little road until it came to a stop beside an old farm house.

"We're probably going to bump along the bottom of this trough another six to eight weeks."

The 4x4 bumped along the track and disappeared from sight.

"I'd be bumping along 34th Street, going from one store to another and stealing," he said.

We bumped along a red dirt road and he told us humans had lived there for 400,000 years.

Then we're off, bumping along a track, darkness on either side.