take years off someone idiom
使某人显得年轻;使某人觉得年轻
If something takes years off a person, it makes them appear or feel much younger.
"Have you seen James without his beard?" "I know - it takes years off him!" “你见过詹姆斯不留胡子的模样吗?”“我知道──那样让他看起来年轻好几岁!”