有youth:n. 青年；青春；年轻；青少年时期The poem contrasts youth and age.这首诗对比了青春与老年。

I used to belong to a youth club.我曾是一个青年俱乐部的成员。Youth is simply an attitude of mind.青春仅仅是心态问题。It was like the return of his youth.这好像是他青年重现。He seemed to pine for his lost youth.他似乎在怀念他逝去的青春。