in one's teens

基本解释

One in five teens reports intentionally misusing someone else's prescription drugs to get high.
他说：“报告称五分之一的青少年故意服用他人处方药寻求刺激。
Late one cloudy afternoon, when Huan Zang, a young man in his late teens, was passing by the foot of a mountain, he heard a girl's giggling.
是一个阴暗的午后﹐黄章﹐一个十八﹑九岁的年轻男子﹐于经过一座山脉的山脚下时﹐他听到了一个女孩子的傻笑声。
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At one level, this passion for same-age peers merely expresses in the social realm the teen's general attraction to novelty: Teens offer teens far more novelty than familiar old family does.
在某个层面上，这种对同龄人的激情只是表达了青少年在社会领域中普遍为新奇事物所吸引：比起熟悉的家人，青少年彼此之间更具新奇性。

If anything the movie may serve to introduce a new generation to a book that is best read for the first time in one's late teens or early 20s.
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Authorities said one of the teens fired four shots, grazing West's ear and striking her in the leg, before he walked around to the stroller and shot the baby in the face.
NPR: Police Arrest 2 Teens In Georgia Baby's Killing