Doctors issued a warning against eating any fish caught in the river.

医生发出警告不要吃在那条河里捕的鱼。

《牛津词典》

The government issued a warning that the strikers should end their action or face dismissal.

该政府发出了警告，罢工者们应停止他们的行动，否则将被免职。

《柯林斯英汉双解大词典》

Finally, the motoring organizations have issued a warning to drivers following the recent falls of snow in many parts of the country.

最后，由于最近全国许多地区下雪，机动车协会向司机发出了警告。

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Indonesian authorities issued a tsunami warning shortly after the quake but it was later canceled.

VOA: standard.2009.09.03

Mexico has also issued a travel warning for Mexicans going to or living in Arizona.

VOA: standard.2010.05.08

In Jerusalem,Israeli Prime Minister Benjamin Netanyahu issued a stern warning.

VOA: standard.2010.08.05

It's top climate scientist issued a warning: we're rapidly reaching the point of no return.

BBC: Climate chaos: Transcript

Then on Tuesday morning the same ratings agency issued a warning on overall European Union debt.

FORBES: Comex Gold Ends Lower But Up from Daily Low On More Consolidation

The U.S. Department of Transportation's Maritime Liaison Office also issued a warning to mariners April 1.

CNN: As piracy surges, U.S. warns of dangers off Somali coast