A little adolescent rebellion is commonly believed to be healthy.

少许青春期叛逆被普遍认为是一个健康的现象。

《柯林斯英汉双解大词典》

The adolescent becomes an adult when he undertakes a real job.

当青少年从事一份真正的工作时，他就长大成人了。

youdao

Chewing gum, once bought primarily by adolescent boys, is now featured in commercials as a breath freshener and teeth cleanser for use after a meal.

曾经主要由青少年购买的口香糖，现在在广告中被用作饭后的口气清新剂和牙齿清洁剂。

youdao

Others disagree and point to a study just published in the Journal of the American Academy of Child and Adolescent Psychiatry.

VOA: special.2009.08.07

and you sacrifice yourself to help other people even when you're a child or adolescent,

甚至在你是小孩或者青少年的时候就牺牲自己帮助他人，

挽救生命的工作 - SpeakingMax英语口语达人

The researchers used a national long-term survey of adolescent health to investigate the relationship between media use and depression.

VOA: special.2009.02.11

No, he is not a toddler or an adolescent-but a 25 year old law student, one year away from financial and physical independence.

FORBES: Dreams and Values

Suddenly, the invisible adolescent was a cultural icon.

FORBES: The Media is an Accomplice in Public Shootings: A Call for a "Stephen King" Law

Another summer hybrid: a double-barrelled post-adolescent dudefest spliced to a macabre crime thriller that resembles, in many details, a true story from 2003.

NEWYORKER: 30 Minutes or Less