I warned that they were dangerous to society.

我曾告诫大家这些人对社会是有危险的。

youdao

Last year I warned that commercial real estate was a 'dark cloud' hanging over the banking industry, echoing comments that were coming from the Federal Reserve.

去年，我曾警告说，商业房地产是笼罩在银行业头上的阴云，与美联储的说法不谋而合。

youdao

When I had my first baby friends warned me that children were expensive.

当我有了第一个孩子时，朋友们提醒我说养小孩是很花钱的。

《柯林斯英汉双解大词典》

"I warned them that there isn't too much ambiguity.

VOA: standard.2009.10.15

When I opposed the war, I warned that it would fan the flames of extremism in the Middle East.

NPR: Transcript: Obama's Speech at AIPAC

If you recall, we saw some valuation watches and warnings from ValuEngine.com recently and I warned that these signals have proven timely in the past.

FORBES: Five Stocks To Buck The Downtrend

Even so, I warned that the weekly charts would remain negative on closes below the five-week modified moving averages 11, 675 Dow and 1227.7 SPX on a negative reaction to the payrolls data.

FORBES: Connect