我姓华却画不出你的轮廓
[wŏ xìng huá què huà bù chū nĭ de lún kuò]
'我姓华却画不出你的轮廓' means 'My surname is Hua but I cannot sketch the outline of you'. It implies the difficulty of capturing or describing the essence or the beauty of the loved person despite how deeply their image might be engraved in this netizen's mind.