a new lease of life idiom UK (US a new lease on life)
更有活力
an occasion when you become more energetic and active than before
His grandchildren have given him a new lease of life. 孙子孙女让他重新变得充满活力。
使用寿命（或持续时间）延长
an increase in the period for which something can be used or continued
The project suddenly got a new lease of life when the developers agreed to provide some more funding. 开发商们同意提供更多资金，使这个项目重新燃起了希望。