uneven road造句怎麼寫

"Differential gear: In automotive mechanics, a gear arrangement that transmits power from the engine to a pair of driving wheels, dividing the force equally between them but permitting them to follow paths of different lengths, as when turning a corner or traversing an uneven road."

Auto vibration has two main driving sources: one is engine reciprocation, which form the regular vibration; the other is random vibration that caused by uneven road.

All over the ground were wet. The uneven roads had converged into small rivers, and they were wandering aimlessly.