峻峭

例句：

1. 1. The mountain is so steep that it's hard to climb up.
   这座山太陡了，很难爬上去。
2. 2. The cliff face is so jagged that it looks like a sharp knife.
   悬崖面太参差不齐了，看起来像一把锋利的刀。
3. 3. The road was so steep that only experienced drivers could navigate it.
   这条路太陡了，只有经验丰富的司机才能驾驶它。