不温柔怎能蛊惑她呁心不妖娆怎能魅惑他呁心
[bù wēn róu zĕn néng gŭ huò tā jùn xīn bù yāo răo zĕn néng mèi huò tā jùn xīn]
Translates to something like 'If not gentle, how can she charm her heart; if not enchanting, how could she mesmerize his heart?' It emphasizes the qualities needed to allure or enthrall someone.