徒步 túbù to be on foot
How to remember 徒步: 徒 disciple + 步 a step = to be on foot.
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How it is used
- To travel on foot / to hike - 徒步旅行 (túbù lǚxíng) hiking/trekking; 徒步穿越沙漠 (túbù chuānyuè shāmò) to cross the desert on foot.
- Emphasizes going by foot rather than by vehicle; now strongly associated with the hobby of hiking.
- Contrast 步行 (bùxíng, to walk, e.g. a short walk); 徒步 suggests longer, deliberate journeys on foot.