崎岖的

例句：

1. 1. The mountain was so steep that it was difficult to climb.
   那座山太陡了，难以攀登。
2. 2. The road was treacherous and required caution.
   这条路险恶，需要小心。
3. 3. The journey was tough, but the scenery was breathtaking.
   旅程艰难，但风景令人叹为观止。