许我三千笔墨画你一世倾城
[xŭ wŏ sān qiān bĭ mò huà nĭ yī shì qīng chéng]
Literally translated, it means 'allow me to use three thousand brushstrokes to paint a picture depicting you as someone whose beauty overwhelms the world.' It’s an extravagant and romantic description showing admiration for someone’s attractiveness or charm.