"They're not only bringing the opportunity to give Afghans more security,working closely with the Afghan national security forces, but bringing very important development dollars."

VOA: standard.2010.05.26

If the vehicle in the unfortunate circumstances of a collision, has to be able to maintain the security of the hydrogen which means more mass, which means a lot of the efficiency is being squandered What's the environmental impact of hydrogen production?

如果车辆,在碰撞中发生了不幸，要仍然能够保持氢气的安全性的话,意味着需要更多的质量，也就是说大部分效率被浪费了,制氢对环境有什么影响呢？

麻省理工公开课 - 固态化学导论课程节选

So, it's not surprising that asset allocation explains more than 100% of returns and that, for the community as a whole, market timing and security selection are costly and lower the community's aggregate investment returns.

因此资产配置能解释100%以上的回报,也不足为奇了,对投资者整体来说,市场时机选择,和证券选择是有代价的,降低了总的投资回报

耶鲁公开课 - 金融市场课程节选

Admiral Mullen says additional troops would be used to provide more security for ordinary Afghans, in the hope they would turn against the insurgents.

VOA: standard.2009.11.04

"People are going to see more security." But Steve Coll says the success of the Kandahar offensive really hinges on a psychological battle that will be more difficult to win.

VOA: standard.2010.05.28

The defense minister, General Abdul Rahim Wardak, noted that even nations with "100-fold" more security resources, mentioning the United States, Britain,Spain,India, Indonesia and Pakistan, have not been able to prevent all attempted terrorist attacks.

VOA: standard.2009.08.16

On Thursday in Brussels, international donors promised more than two hundred fifty million dollars to improve security in Somalia.

VOA: special.2009.04.25

His decision would show which issue was more important: the citizens' right to free speech, or national security.

VOA: special.2009.10.29

The Afghanistan policy calls for establishing security in cities and towns, protecting civilians even if it means more danger for coalition troops.

VOA: special.2010.06.26

More troops will be sent to help with security leading up to Afghanistan's national elections in August.

VOA: special.2009.04.11

He said they showed that Iraqis are ready to take over more of their own security.

VOA: special.2009.02.07

Security Council resolution, but maybe more importantly the unilateral sanctions imposed by America and now by the European Union."

VOA: standard.2010.07.23

In the eastern part of the country, two more soldiers of the NATO-led International Security Assistance Force have been killed.

VOA: standard.2009.09.11

Gates said he would like to see more Asian support for funding Afghanistan's security and building the country's institutions.

VOA: standard.2009.05.30

More than 2,000 times last year, counterfeit medicines caused illness and death, according to the Pharmaceutical Security Institute,a watchdog group.

VOA: standard.2010.06.07

Risk consultant John Drake, of the British security company AKE, predicts several more such incidents will take place this year in Afghanistan.

VOA: standard.2009.09.10

"Palestinians have strengthened their efforts on security, but they need to do more to stop incitement and to move forward with negotiations,"

VOA: standard.2009.09.22

Since the protests began two months ago, more than 30 people have died - protesters,security personnel and bystanders, and more than 1,000 injured.

VOA: standard.2010.05.14

Secretary Gates says a re-evaluation is particularly appropriate because security has deteriorated more than expected in Afghanistan.

VOA: standard.2009.10.06

But Russia was strongly opposed to the system, saying it undermined its national security interests and could lead to more instability in Europe.

VOA: standard.2009.09.17

"The deteriorating security situation and prolonged drought in Somalia are forcing more people to flee further a-field into the neighboring countries and beyond."

VOA: standard.2009.09.26

"Because 20 years after the end of the Cold War, the U.S.-Russian relationship has to be about more than just security and arms control."

VOA: standard.2010.06.24

A more extensive security cordon involving paramilitary troops is planned for Monday's rally in the capital.

VOA: standard.2009.03.13

She says the security forces should be more proactive in monitoring what she calls high-risk suspects.

VOA: standard.2010.03.24

General Keen says U.S.troops are working to assume more responsibility for aid distribution, which will allow U.N.peacekeepers in Haiti to focus on security concerns.

VOA: standard.2010.01.18

He said his hope was that as more Afghan security forces and police are trained by NATO personnel, the British deployment can be reevaluated.

VOA: standard.2009.11.10

He called Iran "one of the most complex national security problems" the United States has faced in his more than 40 years in government.

VOA: standard.2009.12.12

Bomb attacks victims . in two northern Iraqi towns have caused more deaths and injuries Saturday, while the security situation across the country remains tense.

VOA: standard.2009.08.29

The city has more than 10,000 closed circuit security cameras, including in the transportation system.

VOA: standard.2010.04.01

But the Afghans often have their own way of doing things. And that sometimes conflicts with U.S.-led efforts to forge a larger, more independent Afghan security force.

VOA: standard.2009.12.13