drag your feet 拖拖拉拉地做

　　It is not a good idea to drag your feet when the work needs to be done.

　　工作需要完成的时候，拖拖拉拉地做不太好。

　　be back on your feet （病后）恢复健康，痊愈

　　I am back on my feet again now.

　　我现在痊愈啦。

　　keep your feet on the ground 脚踏实地

　　It's a very exciting time for the business but it's important that we keep our feet on the ground.

　　现在对我们的生意来讲是激动人心的时候，但是脚踏实地依然很重要。

　　under your feet 妨碍；碍手碍脚

　　The children were running about under everybody's feet.

　　孩子们到处跑，挺碍着大家事的。

　　not put a foot wrong 从不犯错（英式为主）

　　When he's around, we never put a foot wrong.

　　如果他在，我们从不会犯错。