1. by walking步行
Sally's bicycle broke and she had to return home on foot. 薩莉的自行車壞了,她只好步行回家。
2. being planned在計劃中
Plans have been set on foot by the
company for a party,because Miss Jackson is retiring. 公司已經計劃舉辦一次聚會,以歡送傑克遜小姐退休。
A plan's on foot to invite the Minister of Health to visit our hospital. 邀請衛生部長來我們醫院訪問的準備工作正在進行。