实际说来，我们买不起这东西。

Practically speaking, we can't afford it.

《牛津词典》

有新车好是好，不过实际情况是我们买不起。

A new car would be wonderful but the fact of the matter is that we can't afford one.

《牛津词典》

我妈妈说它们太贵了，我们买不起。

My mother said they were so expensive that we couldn't afford one.

youdao

These mortgages were given out to people that couldn't afford them and today you have what you call subprime mortgages--subprime paper They issued against this paper stuff called mortgage-backed security. They securitized them and these things are all floating around now.

我们发放这些抵押贷款给那些买不起房子的人,所以现在你们看到了一种你们叫做,次级抵押贷款的金融工具--次贷票据,他们把这种票据叫做,有抵押证券，他们把有抵押证券证券化,这些证券现在在市场上被多次交易，广为流通。

耶鲁公开课 - 金融市场课程节选

We couldn't have afforded to buy it now.

如果是现在，我们就买不起它了。

房价非常高 - SpeakingMax英语口语达人

The idea was that a lot of people can't afford a house -let's all get together and pool our money -in a Building Society or Saving and Loan Association -and then we'll loan out to some of us to buy the house.

当初的想法是,很多人都买不起房子,那我们就把钱凑在一起,放到一个建房互助协会或储贷协会里,然后向我们中那些要买房的人发放贷款

耶鲁公开课 - 金融市场课程节选