You can pay back the loan over a period of three years.

你可以在三年内分期归还贷款。

《牛津词典》

He couldn't reasonably be expected to pay back the loan all at once.

公平合理地讲，不可能指望他一下子归还全部借款。

《牛津词典》

He burst into tears, begging her to forgive him and swearing to pay back everything he had stolen.

他突然哭了起来，求她原谅他并发誓要偿还他偷的所有东西。

《柯林斯英汉双解大词典》

But some management experts warn that limiting pay could make it harder for taxpayers to get their money back.

VOA: special.2009.10.30

So, for companies that could pay you back, but their bonds are trading below par, probably because they have a low coupon.

因此，公司也许可以支付你，但是它们的债券只能以低于票面价值交易，很可能是因为他们的票息很低。

耶鲁公开课 - 金融市场课程节选

I promise I'll pay you back tomorrow.

我保证明天就还你。

I didn't 实战 - SpeakingMax英语口语达人

Also positive: Yield spreads decreased in December and January, meaning that investors have more faith in the ability of U.S. companies to pay back debt.

FORBES

The U.S. still has to pay the money back to China.

FORBES: China Wins, U.S. Loses In A123 Bankruptcy

BNP's woes highlight the spreading fallout from U.S. homebuyers' rising inability to pay back loans.

FORBES: Magazine Article