从释义，用法，使用环境，形象和影响范围五个维度分析by foot和on foot的区别，详细内容如下。
1. 释义区别:
- "by foot" 是指用脚步行，不使用任何交通工具。
- "on foot"也是指用脚步行，不使用任何交通工具。
例句:
- I live within walking distance of the office, so I usually go to work by foot.
(我住在离办公室步行可达的地方，所以通常我步行去上班。)
- The traffic was so bad that we decided to leave the car and go on foot.
(交通堵得很厉害，我们决定下车步行前进。)
2. 用法区别:
- "by foot" 可以修饰任何动词，表示用脚行走的方式。
- "on foot" 通常修饰动词“go”，表达步行的方式。
例句:
- We explored the city by foot, visiting all the historic sites.
(我们步行游览了这座城市，参观了所有的历史景点。)
- We had to go on foot because the subway was closed for maintenance.
(由于地铁停运进行维护，我们只好步行前进。)
3. 使用环境区别:
- "by foot" 在一般情况下使用，不涉及具体环境。
- "on foot" 通常与特定环境或场景相联系。
例句:
- She preferred to explore the narrow streets of the old town by foot.
(她更喜欢步行探索古城的狭窄街道。)
- Due to heavy traffic, it's faster to go on foot to the nearby grocery store.
(由于交通繁忙，步行去附近的杂货店更快。)
4. 形象区别:
- "by foot" 语气更加正式和书面化，用于正式场合。
- "on foot" 更加口语化，常用于日常对话。
例句:
- The travelers made their way across the country by foot, documenting their journey.
(旅行者们徒步穿越全国，记录下了他们的旅程。)
- I left my umbrella at home, so I had to walk to the office on foot in the rain.
(我把伞忘在家里了，所以我只好在雨中徒步去办公室。)
5. 影响范围区别:
- "by foot" 相对较广泛，可用于描述任何步行的场合。
- "on foot" 更偏重于描述具体的旅行、探索或距离较近的步行。
例句:
- The hikers covered a great distance by foot, trekking through the mountains.
(徒步旅行者们穿越山脉，行程很长。)
- The cafe is just around the corner. It's easier to go there on foot.
(咖啡馆就在拐角处，步行过去更方便。)