"我们会一直笑谈这些日子直到时间的尽头。"

Simplified Meaning:

The quote means that the experiences you're having now, even if they seem tough or annoying, will be funny or memorable later on. Think about times when you messed up or had a hard day. Maybe you got caught in the rain and ruined your new shoes, or you failed a test you thought would be easy. Right now, it might feel frustrating or embarrassing. However, in the future, these moments can become stories you laugh about with friends and family. They turn into funny memories that make you smile when you look back. Just like when you hear older people laugh about their wild school days or silly things they did as kids. It’s a reminder that today’s problems might become tomorrow’s amusing tales. So, when things go wrong, it can help to remember that these moments could bring joy and laughter later on.