你诺不离不弃我必生死相你诺自我放弃我也无能为
[nĭ nuò bù lí bù qì wŏ bì shēng sĭ xiāng nĭ nuò zì wŏ fàng qì wŏ yĕ wú néng wéi]
A long phrase roughly meaning 'If you promise not to leave or forsake me, I will stand by your side through life and death; But if you choose to give up on yourself, then I can do nothing.' This indicates a vow of undying loyalty, followed by resignation at being helpless against one's decision.