They subtract this loan balance from the sale price and you get cash to buy another house.

他们从售房价格里减去这个贷款余额，然后你就可以得到现金去买另一个房子。

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You can buy maps in the shop and there are all kinds of gifts and souvenirs on sale as well.

你可以在商店里买到地图，店里还出售各种各样的礼物和纪念品。

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Arbitrageurs could buy the high-interest currency today, lock in a future sale at the same price and pocket the extra interest from holding the currency until the forward contract is settled.

套利者可以在今天购买高利率的货币，并以相同的价格在未来锁定售出价格，然后在远期合同到期前从持有的货币中赚得额外的利息。

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Good advice for anyone, billionaire or not: Count your pennies and buy on sale.

FORBES: About Azim Premji

Indeed, many sales break down in the clicks between hitting the initial "buy" button and completing a sale.

FORBES: Magazine Article

In other words, is current selling providing traders and active investors with the opportunity to buy financials on sale before the profit reports, revenues, and guidance hit the headlines in a few days?

FORBES: Wells Fargo And The Case Of The Falling Financials