mountaineering

例句：

1. 1. The climbers were exhausted after the long ascent.
   攀岩者在长时间的攀登后筋疲力尽。
2. 2. Mountaineering is a challenging sport that requires physical and mental strength.
   登山是一项挑战性强的运动，需要体力和毅力。
3. 3. Many people enjoy hiking in the mountains during their vacations.
   许多人喜欢在假期里去山里徒步旅行。