Grissom escaped. He had to swim for a few minutes before helicopters rescued him.

VOA: special.2009.06.17

Well, My favorite machines I'd say, are probably helicopters.

嗯，我最喜欢的机器，在我看来，应该是直升飞机。

学习机械工程 - SpeakingMax英语口语达人

Rescue helicopters reached McDivitt and White within seven minutes of landing.

VOA: special.2009.06.24

Planes and news helicopters were not permitted to fly over it.

VOA: special.2010.08.09

The demonstrators were kept away from the summit site by thousands of police, troops,helicopters, boats,tall fences and occasionally,tear gas.

VOA: standard.2009.09.25

They are also setting backfires to clear away dry brush, and using helicopters and airplanes to drop water and fire retardant.

VOA: standard.2009.09.01

Mr.Brown directly addressed comments, made in a local newspaper, by the outgoing Foreign Office minister that the troops did not have enough helicopters.

VOA: standard.2009.07.22

U.S.military helicopters deployed in military exercises in the southern Philippines assisted the Philippine Air Force and Navy in the search and rescue operations.

VOA: standard.2009.09.06

And police have purchased additional crowd control equipment, including six helicopters, and 300 mobile surveillance cameras.

VOA: standard.2009.06.12

China also showcased new mobile radar units, unmanned drones and helicopters equipment state-run TV announcers said would be useful for the "new information-based environment."

VOA: standard.2009.10.01

This man said, "Twelve or 13 boats attacked us, along with four or five helicopters."

VOA: standard.2010.06.03

(SAYING) He says the commandos came down from helicopters and attacked the activists.

VOA: standard.2010.06.01

"They are right. Of course we must do that. It is a scandal in particular that they still lack enough helicopters to move around in southern Afghanistan.

VOA: standard.2009.07.13

Homes and businesses surround the base, which the Marines mostly use for helicopters.

VOA: standard.2009.11.11

But after further review, Pentagon officials revived the plans for the new helicopters.

VOA: standard.2010.04.27

Unlike other medevac aircraft, Air Force helicopters are equipped to defend themselves.

VOA: standard.2010.04.27

"On the operations we are having at the moment, it is completely wrong to say that the loss of lives has been caused by the absence of helicopters,".

VOA: standard.2009.07.22

"Helicopters and airplanes came and started first with a show of force.

VOA: standard.2009.09.12

Earlier Monday, two coalition helicopters collided and crashed in southern Afghanistan.

VOA: standard.2009.10.26

Mr.Brown reiterated the number of helicopters has been increased by more than 60 percent during the past two years, but he promised more helicopters by the end of 2009.

VOA: standard.2009.07.22

At Bagram Air Base, U.S.Air Force crews prepare their helicopters.

VOA: standard.2010.04.27

Authorities are using helicopters to drop aid to isolated areas.

VOA: standard.2009.10.06

That means they're expensive. Last year,citing the cost, the Pentagon canceled a $14 billion program to buy new helicopters for the rescue squadrons and switch the medical missions to less heavily armed Army helicopters.

VOA: standard.2010.04.27

The same media that in 2005 showed U.S.helicopters distributing aid to earthquake victims in remote areas of Pakistan, are now showing drone attacks on al-Qaida and Taliban militants every day - alongside civilian casualties.

VOA: standard.2010.07.08

Mr.Obama said he wants the U.S.Congress to ratify a treaty limiting U.S.gun exports to the Americas and continue funding for a program that would provide Mexico with military helicopters to assist in the drug war.

VOA: standard.2009.04.17

"And that has been confirmed by people on the ground." Foreign Office Minister Lord Malloch Brown quickly retracted his statement, saying he agreed with the prime minister that the number of helicopters was sufficient for the current operation.

VOA: standard.2009.07.22

Authorities say they quickly killed two of the gunmen, but two others continued to fire machine guns in the extended battle in Pul-i-Alam, Witnesses say U.S.military helicopters were part of the response force, and one aircraft fired a rocket into a multi-story building which the insurgents had seized, used to launch their attack and had rigged with explosives.

VOA: standard.2009.08.10