While they differ on the date, historians agree that the idea of the teenager was invented some time in the mid-20th century. Previously a no-man’s-land between child and adulthood, it acquired a name and a definition several decades ago, but every few generations we still need to reinvent this intense stage of life and its emotional tumult.
尽管他们对具体日期存在分歧，但历史学家们一致认为，“青少年”作为一个概念是在20世纪中叶某个时候发明的。之前它是儿童和成年人之间的一个无人研究的阶段，在几十年前获得了一个名称与定义，但每隔几代人，我们仍需要重新认识这一紧张的人生阶段及其情绪动荡。
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