One day in October of eighteen fifty-nine, Americans were shocked by news of an attack led by John Brown.

VOA: special.2009.06.25

So, by putting ourselves in Hannibal's shoes, we could figure out that his hard attack strategy was weakly dominated.

那么我们从汉尼拔的角度来考虑一下,我们发现崎岖之途是弱劣势策略

耶鲁公开课 - 博弈论课程节选

That's a big problem and so can you protect these cells that you give to the recipient from attack by the recipient's immune system?

并且至关重要,那么你们想办法保护这些植入受体的细胞,使它们免受免疫系统的排异反应么

耶鲁公开课 - 生物医学工程探索课程节选

Russia objects. But the United States says the system would protect Europe from a possible attack by Iran.

VOA: special.2009.05.23

By this time, word of Brown's attack had spread to Charles Town, more than twelve kilometers away.

VOA: special.2009.06.25

All southerners declared that they would fight to protect their homes from a Negro rebellion or from another attack by men like Brown.

VOA: special.2009.07.02

The company said it was targeted last month by a major Internet attack launched from China.

VOA: special.2010.01.15

The attack was led by John Brown, an old anti-slavery extremist.

VOA: special.2009.06.18

Mike Walter is a veteran news reporter who covered the 9/11 attack on the Pentagon and was haunted by nightmares afterwards.

VOA: standard.2010.07.01

An Afghan rights organization says dozens of civilians died in the attack, which was ordered by German forces.

VOA: standard.2009.09.07

As far as targeting the Brits, that is the perfect attack by proxy to get the U.S.' attention,".

VOA: standard.2009.07.02

That attack is already being interpreted by some observers as a hint to possibly banning the party.

VOA: standard.2010.06.17

A World Food Program convoy under Afghan military escort came under attack by insurgents Saturday in the Bala Baluk district in Farah province.

VOA: standard.2009.09.12

It is said the planned attack was guided by senior militants in Pakistan who hoped to mount a so-called 'spectacular' strike against the West.

VOA: standard.2009.09.07

The court heard that seven flights were being considered by the group in what would have been the largest terrorist attack since September 11,2001.

VOA: standard.2009.09.07

Israel's policy since the Gaza War has been to retaliate for every attack, usually with air strikes on tunnels allegedly used by Hamas to smuggle weapons.

VOA: standard.2010.07.30

"Some of you may recall that in June there was an attack on the Sobat river, which effectively prevented food assistance from being delivered by river,".

VOA: standard.2009.08.08

Two people were killed in an attack on a bus in August. The Casamance region is separated geographically from the rest of the country by Gambia.

VOA: standard.2009.10.05

Last Friday, soldiers were returning from patrol when they were ambushed in an attack thought to have been carried out by rebels from the Casamance Movement of Democratic Forces.

VOA: standard.2009.10.05

The two security reviews ordered by the president in the wake of the foiled attack are looking at airport security procedures and the computerized lists used to detect high-risk individuals.

VOA: standard.2009.12.29

For instance,he says, a UN compound recently was hit by rocket fire, a World Food Program convoy came under attack and non-governmental organizations are frequent victims of armed robbery by criminals.

VOA: standard.2009.08.07

He puts forward a reading list of recent books, including one by a former CIA agent, which the tape says will clarify the "message" of the terrorist attack eight years ago.

VOA: standard.2009.09.14

He also noted that as a member of the Western NATO military alliance, Poland is now protected by a creed that says an attack on one is an attack on all.

VOA: standard.2009.09.01

In a sharp attack on Iranian leaders last Friday, former President Akbar Hashemi Rafsanjani warned those in power to "abide by the will of the people" and heal the wounds of the recent crisis.

VOA: standard.2009.07.20

This is the time of year when we see usually an effort by the insurgents to knock us of course and to try and attack the coalition and indeed the government of Afghanistan.

VOA: standard.2010.05.19

"The message by attack on the GHQ is possibly that the army is protecting nuclear assets, and therefore, if the GHQ can be attacked, protect the nuclear assets?" But Pakistani authorities and top U.S.officials have dismissed suggestions that Pakistan's nuclear installations are threatened by the country's growing insurgency.

VOA: standard.2009.10.12

In Bou Saifi, a village south of Baghdad, gunmen killed at least 24 people Friday in what authorities say was an attack by al-Qaida members against families of men linked to Awakening Councils, a pro-U.S.Sunni force that helped Iraq fight extremists and regain a measure of relative calm in recent years.

VOA: standard.2010.04.04