妹妹你哭的梨花带雨姐姐你笑的万分奸诈
[mèi mèi nĭ kū de lí huā dài yŭ jiĕ jiĕ nĭ xiào de wàn fēn jiān zhà]
Contrasts between the younger sister’s emotional vulnerability compared to the elder sister's crafty laughter. It describes two completely opposite personalities within siblings: innocent tears versus cunning smiles, likely evoking playful family dynamics.