遗失在这个夏天成长的落寞遗忘在这个夏天一路的忧伤
[yí shī zài zhè gè xià tiān chéng zhăng de luò mò yí wàng zài zhè gè xià tiān yī lù de yōu shāng]
The loneliness that grew forgotten and lost along the way during this summer. The nickname poignantly recalls how personal development (loss, pain, growth) is left behind during summertime experiences.