倾城半开半妩媚
[qīng chéng bàn kāi bàn wŭ mèi]
Translated as 'half blossomed, half alluring charm that captivates a city'. This phrase originates from old poems describing extraordinary female attractiveness which could lead people flocking to view them, thus making a whole city seem empty. Here it pictures someone especially beautiful and charming, not fully shown yet enough to be captivating.