back on your feet（病后）恢复健康，痊愈，重新振作，恢复

【例句】
Jill is happy to be back on her feet again after her hospital stay.
在住院后，吉儿很高兴她再次恢复健康。

I will go back to work as soon as I get back on my feet.
我一恢复健康就马上回去上班。