表示年轻的英语单词是youth；juvenility和juvenscence。例句：His mistake was due to youth and inexperience.他失误的原因是年轻没有经验。
年轻的英语：
youth ; juvenility ; juvenscence
h 英 [juːθ] 美 [juːθ]
n. 青年；青春；年轻；青少年时期
例句：
mistake was due to youth and inexperience.
他失误的原因是年轻没有经验。
youth continued to gawk at her and did not answer.
那个年轻人依然傻傻地望着她，没有答话。
guard put a youth in a headlock and dragged him away.
看守用肘部卡住年轻人的脖子，把他拖走了。
poem contrasts youth and age.
这首诗对比了青春与老年。
seemed to pine for his lost youth.
他似乎在怀念他逝去的青春。
h is simply an attitude of mind.
青春仅仅是心态问题。
was like the return of his youth.
这好像是他青年重现。
a youth he discovered a gift for teaching.
年轻的时候他就发现了自己教书的天赋。
the corner, one youth sat alone, softly strumming a guitar.
在角落里，一个年轻人独自坐着，轻轻地弹着一把吉他。
10.I used to belong to a youth club.
我曾是一个青年俱乐部的成员。
nility 英 [,dʒuːvə'nɪlətɪ] 美 [ˌdʒʊvəˈnɪləti]
n. 年轻，年少；不成熟
例句：
nility and full of energy are our capital.
年轻和充满活力是我们最大的资本。
ough existed for more than one century and, accepted by more and more countries and medias, investigative reporting is still in the juvenility to academic study.
尽管调查性报道已经存在了一个多世纪，而且正在有越来越多的国家和媒体接受这一报道方式，但是，学术界对它的理论探讨还不成熟。
juvenility of theory and practice makes us carry through further theoretic discussion necessarily.
理论和实践的不成熟，决定我们有必要对此进行一番探讨。
classic concepts and recent advances on the physiological mechanism, biological marker and the regulation of juvenility in flowering plant were reviewed.
综述了关于显花植物童性的生理机制，生理生化标记，童期调控和花诱导等方面的经典理论和最新研究进展。
present, the deep shear wave source technique is still in juvenility, major multiwave technical studies are directed against transformed waves.
目前深层横波震源技术尚不成熟，大量的多波技术研究仍然是针对转换波。
3. juvenscence
n. 年轻
例句：
t super activity —— super 074 concert. not only lots of super stars, but also good propagandize is in this activily which means that 074 is walking from juvenscence toward mature!
074班第一场超大型活动——超级074音乐会，不仅嘉宾阵容强大，明星耀眼，宣传到位，最重要的是，从此，074由青涩走向成熟！