repay

It took him five years to fully repay the student loan he took out for university.

(Chinese) 他花了五年时间才还清上大学时申请的学生贷款。

I hope I can one day repay your kindness for helping me move during the storm.

(Chinese) 我希望有一天能报答你在暴风雨中帮我搬家的恩情。