徒步

例句：

1. 1. We decided to go hiking in the mountains this weekend.
   我们决定这个周末去山里徒步。
2. 2. He enjoys walking along the river every evening.
   他喜欢每天晚上沿着河散步。
3. 3. The hike was challenging but rewarding.
   这次徒步旅行很有挑战性，但也很值得。