be rushed off your foot or be run off your foot 忙得不可开交;要做太多事
　　例：To repair the sports meeting，we’ve been rushed off our feet.
　　为了准备运动会，我们忙得不可开交。
　　fall / land on your feet 特别走运;安然脱离困境
　　例：Thank Goodness！You finally landed on your feet！感谢上帝，你终于脱险了。
　　get / have a / your foot in the door设法加入，涉足某组织、行业等
　　例：I always wanted to work in TV but it took me two years to get a foot in the door.
　　我一直想从事电视工作，但花了两年时间才进了这个圈子。
　　get / start off the right / wrong foot with开始时关系良好或不好
　　例：I seem to have got off the wrong foot with the new boss.
　　看來我和新老板的关系一开始就不好。
　　keep your feet on the ground脚踏实地
　　例：Do keep your feet on the ground，it’s the only way to success.
　　脚踏实地，这才是通向成功唯一的路。
　　set foot in / on sth.进入、访问、参观某地
　　例：Do you still remember the name of the man who is the first to set foot on the moon？
　　你还记得第一个登上月球的人的名字吗？
　　set sb. / sth. on their / its feet使独立;使成功
　　例：His business sense helped set the club on its feet again. 他的经营意识使俱乐部重振雄风。
　　stand on your own feet自立
　　例：When his parents died，he had to learn to stand on his own feet.
　　他父母过世后，他不得不学会自立。
　　under your feet碍手碍脚
　　例：I don’t want you kids under my feet while I’m cooking.
　　我做饭时，不希望你们这些孩子在这碍手碍脚。