你会伴我多久一辈子够不够
[nĭ huì bàn wŏ duō jiŭ yī bèi zi gòu bù gòu]
This translates roughly to 'How long will you stay with me? Is a lifetime enough?' It expresses longing and insecurity about relationships or companionship, pondering if a lifetime might be short in relation to their desire.