Back on one's feet: 1. Literally, standing again after a fall;2. In good health again after a period of injury or illness;3. No longer in a precarious financial situation.
中文释义:从字面上看,“back on one's feet”的意思是“重新站起来”。但它的真正意思是“病后痊愈,恢复健康”,当然它也有“东山再起,重新振作”的意思。为什么是back on one's feet呢,因为从生病下不了床到能下床活动了,就是一个从没法走路到能走得动道的过程,也可以说是从重大的财产危机中恢复过来了。例句:“I've paid my debt and been back on my feet again."(我还了债,可以自力更生了。)