就算这路再长再苦尽头是你我也不怕
[jiù suàn zhè lù zài zhăng zài kŭ jĭn tóu shì nĭ wŏ yĕ bù pà]
Even if this road is long and bitter, I'm not afraid as long as you are there at the end. It describes unwavering commitment and determination to stay together regardless of difficulties, indicating strong mutual support between lovers or friends facing adversity.