你的过去我不曾参与你的未来我奉陪到底
[nĭ de guò qù wŏ bù céng cān yŭ nĭ de wèi lái wŏ fèng péi dào dĭ]
'I Did Not Take Part In Your Past, But I'll Accompany You All the Way Through Your Future.' This reflects commitment in a relationship - acknowledging no part in the other person's history but being fully dedicated to their shared future.