步行用英语怎么说on foot

　　她不喜欢深夜步行回家。

　　She doesn't like to walk home late at night.

　　我们与一批背着超大行囊的步行者擦肩而过。

　　We passed a group of walkers, carrying huge packs.

　　“我宁愿步行。”她答道。

　　'I'd prefer to walk,' she answered.

　　现在我可以步行去上班，而不必开车了。

　　Now I can walk to work instead of going by car.