少年正叼别把弟弟用细了姑娘还小别把身体用旧了
[shăo nián zhèng diāo bié bă dì dì yòng xì le gū niáng hái xiăo bié bă shēn tĭ yòng jiù le]
'Young Man, Don't Exhaust Your Little Brother, Girl Is Still Young, Take Care of Her Body.' Likely meant playfully but carrying serious underlying advice. Emphasizes caring and caution, reflecting protective sentiments towards others' well-being.