The price is payable in monthly instalments.

本价格可按月分期付款。

《牛津词典》

The loan is repayable in monthly instalments.

这笔借款能以按月摊付的方式偿还。

《牛津词典》

I am paying for the house by monthly instalments.

我按月分期偿还购买房子的款项。

《新英汉大辞典》

Cardiff had previously agreed to begin paying off the Langston debt in monthly instalments, with the first payment scheduled for January 2010.

BBC: Cardiff City hold Langston debt meeting

Most of the region's banks do not offer direct debits or standing orders, so companies tend to take cheques for monthly instalments in advance.

ECONOMIST: Bouncing across Arabia

Donner said the financial support deal will have an interest rate of 14% annually and will begin repayment in 30 equal monthly instalments after the seventh month of the closing date.

FORBES: Donner Metals Receives Financial Support From Qu��bec, Production At Bracemac-McLeod Nearing