1. This weekend we will be trekking on rugged terrain in the mountains.2. When hiking on rough trails in the mountains you need to be careful.3. The scenery at Yellowstone is a mix of craggy mountains and spectacular waterfalls.
 rugged rough craggy這些字都能形容路或山的崎嶇。
1. 山上陡峭的道路2. 陡峻的山
Student protesters against the Cross-Strait Service Trade Areement have occupied Taiwan's legislature and are staging a sit-in.