At the last minute, I threw them a curve ball by saying, "We're going to bring spouses."

在最后一刻，我给了他们一个惊喜，说：“我们会带配偶。”

《柯林斯英汉双解大词典》

You may lose weight for a little bit, but you'll regain it when life throws you a curve ball.

你或许可以慢慢地减肥，但当生活扔给你一个曲线球，你又会很快地回复。

youdao

Now that would throw up a curve ball that would keep a smile on the faces of the Yamaha guys wouldn't it?

现在好好刁难一下会让雅马哈的人面露笑意吧？

youdao

But a person who threw a curve ball did something unexpected.

VOA: special.2009.04.12

Could the wider distribution of the latest iPhone have thrown a curve ball at HTC?

FORBES: The New HTC Warning is Massive

The scary part was supposed to be tablet and smartphone market, where European conumer demand trouble is creating a curve ball for investors.

FORBES: Chip Stocks Still Not Pricing a True Inventory Correction

"There is no question the race for majority leader has been dealt a curve ball, an unexpected one, the reluctant candidacy of Dennis Hastert, " Paxon said.

CNN: GOP set to pick its leadership team