rugging

例句：

1. 1. The hike was rugged and required a lot of physical strength.
   徒步旅行非常艰难，需要很多体力。
2. 2.The road is rugged, making it difficult to navigate.
   这条路崎岖不平，难以驾驶。
3. 3.The climb up the mountain was rugged, requiring careful navigation.
   攀登这座山非常艰难，需要小心导航。