'I warned you not to phone me,' he said evenly.

“我告诫过你不要给我打电话。”他平静地说。

《牛津词典》

I warned you trillions of times not to trust him.

我已警告你无数次，不要相信他。

youdao

I warned you, Matt Saunders!

我警告过你，马特·桑德斯！

youdao

And I ask same car or not. Again, at this time imagine you to be warned.

我问这是不是同一辆车，这时还是得当心。

耶鲁公开课 - 死亡课程节选

This is a long read though so I warned you.

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But I warned you guys I couldn't answer every question.

WHITEHOUSE: Creating New Jobs by Investing in High-Speed Rail

Mr Bentinck, who lives in Islington and uses the Piccadilly Line, said he always secretly hoped he would get a chance to "freak people" by saying "I warned you" if someone happened not to take note of the warnings.

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