待你长发及腰我以坟头长草
[dài nĭ zhăng fā jí yāo wŏ yĭ fén tóu zhăng căo]
'待你长发及腰' indicates waiting for someone's long hair to reach her waist (metaphor of growing love); '我以坟头长草' implies a separation caused by death (literally 'grass is growing on my grave'). Overall, it reflects a sad tone, conveying feelings after someone's departure due to death.