那些年走过的青春那些年逝去的青春
[nèi xiē nián zŏu guò de qīng chūn nèi xiē nián shì qù de qīng chūn]
Reflecting on years gone by, this nickname conveys nostalgia for one's youth. It captures both the experiences gained and lost during that period. Essentially expressing reminiscence of the vibrant past but also an understanding that those days are now in the past.