6 sentences

1. 他需要偿还这笔债务。

   tā xū​yào cháng​huán zhè bǐ zhài​wù.

   He needs to repay this debt.

   Source: Dong Chinese Dictionary

2. 债权人要求他偿还债务。

   zhài​quán​rén yāo​qiú tā cháng​huán zhài​wù.

   The creditor demanded that he repay the debt.

   Source: Dong Chinese Dictionary

3. 他打两份工来偿还欠债。

   tā dǎ liǎng fèn gōng lái cháng​huán qiàn​zhài.

   He works two jobs to pay off his debts.

   Source: Dong Chinese Dictionary

4. 血债要用血来偿还。

   xuè​zhài yào yòng xuè lái cháng​huán.

   A blood debt must be paid in blood.

   Source: Dong Chinese Dictionary

5. 借款人必须按期偿还贷款。

   jiè​kuǎn​rén bì​xū àn​qī cháng​huán dài​kuǎn.

   Borrowers must repay the loan on schedule.

   Source: Dong Chinese Dictionary

6. 该公司因无法按时偿还债务而构成违约。

   gāi gōng​sī yīn wú​fǎ àn​shí cháng​huán zhài​wù ér gòu​chéng wéi​yuē.

   The company went into default because it could not repay its debts on time.

   Source: Dong Chinese Dictionary