你的长发为谁留你的短发为谁剪
[nĭ de zhăng fā wéi shéi liú nĭ de duăn fā wéi shéi jiăn]
Expresses contemplation over whom the significant changes in hairstyle are intended for, implying these modifications are made for or influenced by specific relationships or people, hinting at unrequited love or personal transformation stories.