a new lease of life

Từ điển Oxford Advanced Learner 8th

a (ˌnew) lease of ˈlife idiom
(BrE) (NAmE a (ˌnew) lease on ˈlife)the chance to live or last longer, or with a better quality of life
•Since her hip operation she's had a new lease of life.
Main entry: ↑lease_idiom