new blood ------------ 新鲜血液（成语）

英文释义
(IDIOM) Fresh individuals with new ideas and new energy who join and invigorate an old organization.

例句
When our elderly company founder retired, his son became our new president and brought in a lot of new blood, including some hard-working young executives who made strong contributions to our success.
在公司年迈的创始人退休后，他的儿子成为了我们的新总裁，带来了大量的新鲜血液，包括为我们成功做出重要贡献的一些工作勤奋的年轻高管。