youth.ful
adj.(形容词)Characterized by youth; young.年轻的:具有年轻人特点的;年轻的Of, relating to, or characteristic of youth.青年的:青年的、与青年有关的或具有青年特点的Marked by or possessing characteristics, such as vigor, freshness, or enthusiasm, that are associated with youth.See Synonyms at young 朝气蓬勃的:具有或拥有青年人特点的,如活力、朝气或热情,与青年人有关参见 youngIn an early stage of development; new.早期的:处于发展初级阶段的;新的Geology Young:【地质学】 幼年期的:例句:a youthful streambed.幼年期的河床
【引伸】
youth.fully
adv.(副词)youth.fulness
n.(名词)