年轻 + 的 + Noun
The adjective 年轻 (niánqīng) means 'young' and is used to describe people or groups that are youthful in age. It often appears before 的 and a noun to modify it, and can also be used as a predicate to describe someone's youthful quality.
她看起来很年轻,完全不像四十岁的人。
Tā kàn qǐlái hěn niánqīng, wánquán bú xiàng sìshí suì de rén.
She looks very young, nothing like a forty-year-old.
年轻人应该多出去看看外面的世界。
Niánqīng rén yīnggāi duō chūqù kànkan wàimiàn de shìjiè.
Young people should get out more and see the world.
他虽然年纪大了,但心态还是很年轻。
Tā suīrán niánjì dà le, dàn xīntài háishi hěn niánqīng.
Although he's getting old, his mindset is still very young.