还清

huán qīng mǒu rén de zhài wù

还清某人的债务

pay off one's debts

huán qīng mǒu rén de jiù zhàng

还清某人的旧账

pay off one's old scores

huán qīng dǐ yā dài kuǎn

还清抵押贷款

pay off a mortgage

tā děi yòng yú shēng lái huán qīng nà bǐ dài kuǎn

她得用余生来还清那笔贷款。

It would take her the rest of her life to pay off that loan.