姑娘你貌美如花少年你温润如玉
[gū niáng nĭ mào mĕi rú huā shăo nián nĭ wēn rùn rú yù]
This translates to 'Young girl, you are as beautiful as a flower; young man, you are as warm and lustrous as jade.' It's often used to praise someone for their beauty or refined personality traits.