wéi xiū wán chéng shí, què rèn gōng néng shì fǒu zhèng cháng, fèi yòng shì fǒu fù qīng, bǎo xiū cóng nǎ tiān kāi shǐ, hòu xù lián xì shéi

维修完成时，确认功能是否正常、费用是否付清、保修从哪天开始、后续联系谁。

Upon completion of repairs, confirm whether the functions are normal, whether the fees are fully paid, when the warranty starts, and whom to contact for follow-up.