这个节目专门为青少年观众设计。

This show is designed for ___juvenile audiences.

他因为课堂上扔纸飞机的幼稚行为被老师训斥了。

He was scolded by the teacher for his ___juvenile act of throwing paper planes in class.

少年法庭专门处理涉及18岁以下青少年的案件。

The ___juvenile court deals with cases involving young people under 18.