Sharp words from a teacher,for example, can usually get a daydreaming student to put both feet on the ground.

VOA: special.2009.03.08

It's dangerous to want to get away from earth awhile, to get your feet entirely off the ground.

想要逃离地面一会，让自己的双脚同时离开地面很危险。

耶鲁公开课 - 现代诗歌课程节选

"In short,our goal is to get G.M.back on its feet, take a hands-off approach and get out quickly."

VOA: special.2009.06.05

You are likely to get cold feet about being president when you understand the situation.

VOA: special.2009.12.13

They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.

VOA: special.2010.02.03

We are going to do everything we can, get back on their feet."

VOA: standard.2010.06.14