The extra money came in very handy.

这笔额外的钱正好派上了用场。

《牛津词典》

Who is going to stump up the extra money?

额外的钱谁来出？

《牛津词典》

They might prevent children getting extra money.

他们可能会阻止孩子获得额外的钱。

youdao

But he also said the government must be willing to spend extra money to prevent people from starving.

VOA: special.2011.03.10

This means that you would have to pay extra money at the end, but they decided that people have trouble doing that.

这表示你在最后必须支付额外的款项,但他们觉得人们对偿还额外款项会有困难

耶鲁公开课 - 金融市场课程节选

But I do agree with spending a little bit of extra money for something that's a higher quality.

但是，我同意多花一点钱去买一些高质量的东西，

不需要名牌 - SpeakingMax英语口语达人

All the indications are that Cyprus itself will have to find the extra money.

BBC: Cyprus: Bailed out or broken

This will increase spending since poor people spend all the extra money they receive.

FORBES: The Minimum Wage: More Baloney

What are the two things politicians are always claiming they need extra money for?

FORBES: Government Not Only Too Large, But Spending the Money in All the Wrong Places