待我长发及腰陪我一生好吗
[dài wŏ zhăng fā jí yāo péi wŏ yī shēng hăo ma]
'When I Have Long Hair Reaching My Waist, Will You Spend Your Life with Me?' This conveys longing for true love and commitment; growing out hair can be a symbolic gesture of maturity and preparedness for marriage.