姑娘还年轻别把身体用旧了
[gū niáng hái nián qīng bié bă shēn tĭ yòng jiù le]
An advice reminding a young lady not to overexert her body at an early age or engage in behaviors or activities that may harm her long-term health. It suggests prioritizing long-term wellbeing over short-term indulgence or success.