我姓刘而留不住你的心
[wŏ xìng liú ér liú bù zhù nĭ de xīn]
'Wo Xing Liu Er Liu Bu Zhu Ni De Xin' means 'My surname is Liu and I cannot keep your heart'. It describes the feeling of sadness and helplessness from being unable to maintain another person's interest or love, especially in romantic scenarios.