你不该等到失去时候才懂
        
            [nĭ bù gāi dĕng dào shī qù shí hòu cái dŏng]
        
        
            This translates to 'You shouldn't wait until you lose it to understand.' It conveys regret over losing something only after realizing its true worth, suggesting a warning or lesson about valuing things or people in time.