The World Health Organization, the United Nations health agency, uses a system of six phases to warn of possible influenza pandemics.

VOA: special.2009.05.06

And as an added incentive for you to pay attention, I'm going to warn you that this particular simulation will appear in the final or a variant of it.

作为提高你们注意力的激励，我要警告你们,这个特殊的仿真程,或者它的变种会再期末考试出现。

麻省理工公开课 - 计算机科学及编程导论课程节选

But I want to warn everybody ahead of time, I will not be following the textbook.

不过我先提个醒,我不会完全参照课本

耶鲁公开课 - 博弈论课程节选

The messages began to warn of trouble.

VOA: special.2010.05.26

They warn us of dangerous trends. They point out potent evils.

他们为我们警告对危险倾向，指出潜在的邪恶。

耶鲁公开课 - 1945年后的美国小说课程节选

Rebecca Chiao says harassmap.org will help warn the public about areas where there is a high risk of harassment.

VOA: special.2010.11.29

I have to warn you this third and final movie is an example of why this research is not currently done, but it illustrates an important scientific point.

我必须警告你们第三,和最后的影片是一个例子,关于为什么这个研究现在没有做，但它描述了重要的科学观点。

耶鲁公开课 - 心理学导论课程节选

Carlo Urbani was the first doctor to warn the world of the disease that became known as SARS.

VOA: special.2009.01.27

Now I say this not so much to depress the hell out of you, but partly to warn you, and to make it clear that I believe that it's a skill.

我说这些不是想吓坏你们，只是，一，警告你们一下，二，说清楚，我相信这只是一种技能。

耶鲁公开课 - 死亡课程节选

Even today many citizens of San Francisco warn visitors never to call the great city Frisco.

VOA: special.2009.12.14

I should warn you again that I'm very likely to make mistakes when I'm doing this kind of thing, so please catch me I do.

我还得提醒一下大家,我总算错,如果发现错误请马上指出

耶鲁公开课 - 博弈论课程节选

He got a metal shovel and hit the stone sides of the house so that the noise would warn the birds and animals of danger.

VOA: special.2010.03.20

Now many of you may have heard, many of you may know, and if you don't already know this, I should warn you, that I have a reputation around Yale as being a harsh grader.

你们中的大多数可能听说过，你们中的一部分可能知道，如果你真的不知道，那么我要警告你，我在耶鲁,是出了名的严厉。

耶鲁公开课 - 死亡课程节选

Other products warn drivers if they are falling asleep or in danger of an accident.

VOA: special.2010.01.08

In many countries, it is possible to buy and use a special device that will warn when harmful levels of carbon monoxide are in the area.

VOA: special.2010.02.02

Based on the results, researchers advised doctors and parents to warn young women about the risk of wrinkles as a more effective way to prevent tanning bed use.

VOA: special.2010.07.06

They observe the movement of lions and warn herders of their presence.

VOA: special.2009.05.05

They warn that the amount of junk in Earth's orbit is increasing and, as it does,the risks to satellites and space vehicles,also rise.

VOA: standard.2010.07.24

He came to warn us about James. This isn't my fight,and I've grown tired of his games, but he's got unparalleled senses,absolutely lethal.

VOA: standard.other

Analysts warn Turkey could be on the verge of again descending into a spiral of violence.

VOA: standard.2010.06.17

However,both organizations also warn patients to make sure they choose certified doctors and surgeons at health care institutions that have met high standards of accreditation.

VOA: standard.2010.04.08

Despite recent wet weather across much of the continent, climatologists warn that a looming El Nino pattern could bring drier conditions to Australia in the coming months.

VOA: standard.2009.06.24

Diplomats and observers warn that this could be the deadliest phase of the war, as the army tries to target the rebels mixed in the civilian population.

VOA: standard.2009.04.06

However,critics warn that without freedom of expression, reconciliation is doomed to failure.

VOA: standard.2010.07.06

Scientists warn the impact of climate change is hitting the world faster than previous predictions by Pachauri's IPCC, which amounts to a more conservative consensus of top world researchers.

VOA: standard.2009.03.12

Republicans oppose the Obama health care approach as too costly and warn the administration plan could affect the quality of care for those who already have health insurance coverage.

VOA: standard.2009.08.12

Political analysts warn that the timing of Mr.Brown's appearance will be unwelcome for many in his Labor party forcing the party to revisit an issue that was damaging in the last election.

VOA: standard.2010.01.22

As Yemen battles al-Qaida in the Arabian Peninsula, a Southern separatist movement, and tries to wrap up a six-year old war in the north, Western governments warn their citizens to stay out of the country, scaring off tourists and investors.

VOA: standard.2010.04.20

"So while we're not really forecasting another meltdown, we're more in the correction camp, you certainly have to warn investors that it is a possibility, we could be in for maybe a slightly smaller version of the roller coaster that we went through in 2008."

VOA: standard.2010.05.21