付息

nǐ děi huán běn fù xī

你得还本付息。

You have to pay principal with interest

jiè kuǎn rén xū yú měi yī fù xī rì dāng rì fù xī

借款人须于每一付息日当日付息。

The borrower shall pay interest on each interest payment day.

sān nián yán hòu fù xī

三年延后付息

a three-year moratorium on interest payments