translation.en: So adolescence is defined as the period of life that starts with the biological, hormonal, physical changes of puberty and ends at the age at which an individual attains a stable, independent role in society.
translation.zh: 所以青春期也被定义为 生命中生理和荷尔蒙转变的开端 当人们在社会中获得一个稳定和独立的身份时 也就标志这青春期的结束了。