by foot是固定搭配,走路,步行
Loch Coruisk on the Isle of Skye, in Scotland, which can only be reached by boat or by foot, completed the top 10。
排在前十名的還有位於蘇格蘭斯凱島的科斯克湖,人們只能乘船或步行前往。
by 後面不能+walk,如果要表達走路的意思應該是by walking,walk是動詞,by後面+動詞ing形式,表示透過。
by foot,應該沒有這種用法,只有on foot, 腳是自身的用介詞on,by是依靠外界的。by walk似乎沒這種用法,也不地道,walk作名詞時,有go for a walk,take a walk。
如:He often goes to school on foot。他經常走路上學,on foot介賓短語作方式狀語。
又如:He usually takes a walk after supper。飯後他通常去走一走。