You're quite within your rights to ask for your money back.

你完全有权要回你的钱。

《牛津词典》

Having bluffed his way in without paying, he could not plausibly demand his money back.

没付钱混了进去，他不大可能理直气壮地要回自己的钱。

《柯林斯英汉双解大词典》

I want the money back tomorrow. No kidding.

我希望明天钱就能退回来。这可不是开玩笑。

《牛津词典》

"where the villager borrows money from local micro-credit organizations and pays them back."

VOA: standard.2009.12.13

Historically, money lenders of one sort or another go back -who knows how far back -thousands of years.

从历史上讲,放债人的存在可以追溯到,谁知道多久以前,数千年前吧

耶鲁公开课 - 金融市场课程节选

Here I was, back at Yale, with a billion dollar portfolio -it seemed like a lot of money at the time no portfolio management experience.

那时我在耶鲁,要管理上十亿美元的投资组合,在当时,那是笔巨款,而我却没有任何投资组合管理经验

耶鲁公开课 - 金融市场课程节选

Click here for today's and tomorrow's trades in Larry McMillan's Daily Volume Alerts... try it with a money-back Forbes guarantee.

FORBES: Magazine Article

Under GM's Chevy offer, buyers of 2012 vehicles can take advantage of both the no-haggle pricing and the money-back guarantee.

WSJ: GM Kicks Off Clearance Season With Money-Back Guarantee

The staffs don't earn commissions, and with a 90-day money-back trial period, it can be a good way to try new devices.

WSJ: Conquering Retirement: Hearing-Aid Shopping Tips