On a signal from the teacher, the students got to their feet.
Bring (somebody) to their feet 赢得满堂喝彩
The band performance brought us to our feet！
Sit at somebody’s feet 成为某人的信徒
I choose to sit at Jack Ma's feet for the rest of my life.
I am tired now, we visited the whole palace on foot this afternoon.
Sally said I should try bungee jumping, but I got cold feet.
I am under the weather now, but I hope to be back on my feet next week.