Cindy教口语，“年少无知的”英语怎么说？

原文地址

Juvenile
 

juvenile /ˈdʒu:vənaɪl/

n. 青少年

adj. 青少年的，幼稚的，年少无知的
 

It refers to a child or young person who is not yet old enough to be regarded as an adult; or refers to someone's behaviour which is silly or childish.

它指的是还没有到成人年龄的孩子或年轻人;或指某人的行为举止过于愚蠢、幼稚。
 

Nowadays, juvenile crime is increasing at a terrifying rate.

现如今，青少年犯罪正在以惊人的速度增长。
 

To be honest, their behavior was juvenile.

说实话，他们的行为很幼稚。