地面粗糙不平，使得行走困难。

The ground was ___rough and uneven, making it hard to walk.

那是一条崎岖的山路，覆盖着石头和大坑。

It was a ___rough mountain road, covered in stones and huge holes.

在崎岖地形上骑自行车需要平衡和技巧。

Riding a bike on ___rough terrain requires balance and skill.