Last year,Doctor Chan reported that a long-term study of almost fifty thousand men showed that aspirin can help prevent colon cancer.

VOA: special.2009.09.01

Moreover they can also borrow from the Federal Reserve Banks when they're in trouble and need money and that's supposed to help prevent banking crises.

更多的是，当它们陷入困境,需要钱时可以,从联邦储备银行那里借钱,这样可以帮助阻止银行业危机的产生。

耶鲁公开课 - 金融市场课程节选

They help prevent fraud, misrepresentation, manipulation of information in stocks and bonds.

它帮助人们防止诈骗，虚报和巧妙利用证券股票市场中，信息不对称而牟利等事情的发生。

耶鲁公开课 - 金融市场课程节选

Keeping bones strong with exercise may also help prevent fractures, especially if you wear the right sports protection during activities.

VOA: special.2009.02.04

University of Arizona extension experts say covering plants and small trees with cloth or paper can help prevent frost damage.

VOA: special.2010.01.12

The American Cancer Society says governments can do things to help prevent the increase in cancer cases and deaths.

VOA: special.2009.03.02

But one possibility, he says,is that it may take time away from sports or other activities that could help prevent depression.

VOA: special.2009.03.10

The United States is also offering support to other countries in the area to help prevent other attacks.

VOA: special.2010.07.17

The new study led by Doctor Shetgiri shows that parents could help prevent bullying by improving communication and involvement with their children.

VOA: special.2010.05.06

But one possibility,he says, is that it may take time away from activities that could help prevent depression, like sports and socializing.

VOA: special.2009.02.11

Last year Doctor Chan reported that a long-term study of almost fifty thousand men showed that aspirin can help prevent colon cancer.

VOA: special.2009.08.19

The authors say community education programs could help prevent snakebites by teaching people how to avoid them.

VOA: special.2010.01.25

The fluoride mixes with enamel, the hard surface on teeth, to help prevent holes, or cavities,from forming.

VOA: special.2009.03.11

The U.S.C.team says it hopes future research will help prevent or treat cleft conditions in people.

VOA: special.2009.12.22

To help prevent diarrhea, the report suggests that children receive both the rotavirus and measles vaccines.

VOA: special.2009.11.17

They say drinking a sports drink with sodium in it can help prevent the condition.

VOA: special.2010.07.27

Studies have found that aspirin may help prevent cancers of the stomach, intestines and colon.

VOA: special.2009.10.20

He thought that this effect might help prevent heart attacks caused by blood clots.

VOA: special.2009.10.20

He suggests steps that could help prevent getting swine flu on an airplane.

VOA: special.2009.07.14

Rotational grazing can even help prevent wildfires by keeping grasslands in good condition.

VOA: special.2010.01.19

Low amounts may help prevent health threats from stroke to heart attack.

VOA: special.2009.10.20

He felt this would help prevent the South from seceding.

VOA: special.2009.03.19

They also help prevent soil loss and protect water supplies.

VOA: special.2009.09.01

There are simple ways to help prevent spreading the virus.

VOA: special.2009.04.29

Most vaccines help prevent disease in children,but reaching children in remote rural areas is often a challenge especially in poorer and war-torn countries.

VOA: standard.2009.12.28

Henry says a nuclear-free world also means that countries need to work together and create an environment that will help prevent international conflicts.

VOA: standard.2010.08.06

"And I urge Congress to continue moving forward on financial reform that will help prevent the crisis we saw last fall from happening again."

VOA: standard.2009.10.22

(Speaking) The prime minister noted the presence of election monitors to help prevent any fraud.

VOA: standard.2010.03.07

And,in May,President Dmitri Medvedev announced creation of a government commission to help prevent what he said was falsification of history that harms the interests of Russia.

VOA: standard.2009.12.25

The Germans ordered a small fleet of the Heron drones from Israel Aerospace Industries to help prevent civilian casualties and friendly-fire incidents in the rugged Afghan terrain.

VOA: standard.2010.07.27