youthful
adjective approving uk/ˈjuːθ.fəl/ us/ˈjuːθ.fəl/
年轻人特有的;富有青春活力的;朝气蓬勃的
having the qualities that are typical of young people
At the time I admired his youthful enthusiasm. 当时我很羡慕他那年轻人特有的热情。
She has very youthful skin. 她的皮肤非常细嫩。
年轻的
young
A youthful president can be good for a country's morale. 一位年轻的总统可以有助于改善国家的精神面貌。