短语词组短语by foot 步行;自己走着去;通过步行Walk by foot 步行DC by foot 漫步DCcome by foot 来的脚;由于脚;来吧徒步voting by foot 以脚投票gear changing by foot 脚踏变速;脚踏换档compress by foot 踩压move along by foot 步行on foot or by bike 步行还是骑自行车 返回 foot by foot