沒有妳半城繁華半城傷
[méi yŏu năi bàn chéng fán huá bàn chéng shāng]
The translation is 'Without you, it’s only half-city prosperity and half-city wounds'. This suggests the importance of a particular person in someone's life - without this special someone, all success or glory will lose meaning, leaving nothing but regret and sadness (like a city half ruined).