It follows over eighteen thousand pieces of debris as small as the size of a baseball.

VOA: special.2009.04.01

They evolve to become very dense, hard, pustular lesions, which are filled with what turns out to be tissue debris.

它们逐渐变成粘稠,发硬,产生脓包状的伤痕,而这些粘稠的脓事实上是组织残骸

耶鲁公开课 - 生物医学工程探索课程节选

And so that debris fills up a little spot that would feel, according to reports, because again we don't see it now, feels like a little pellet underneath your skin.

然后这些死亡细胞都填充在一个点上,会有一种,根据记录所说,因为我们,没有再见过这病,会感觉皮肤下面有个小球

耶鲁公开课 - 生物医学工程探索课程节选

Space debris made news on March twelfth when a part of an old rocket motor about ten centimeters in size threatened the International Space Station.

VOA: special.2009.04.01

Nicholas Johnson is chief scientist for orbital debris for the United States space agency.

VOA: special.2009.04.01

The space station has been hit in the past by very small debris.

VOA: special.2009.04.01

But the biggest debris-causing event took place in January, two thousand seven.

VOA: special.2009.04.01

On March twenty-second, NASA again ordered the astronauts on the linked space station and shuttle Discovery to move out of the way of another piece of debris from a rocket.

VOA: special.2009.04.01

It spread hundreds of pieces of debris.

VOA: special.2009.04.01

Hundreds of rescue workers and volunteers dug through mud and debris Saturday looking for signs of survivors and recovering more bodies.

VOA: standard.2009.03.28

Many have cuts and broken bones from falling debris and burns from the intense heat of the explosion.

VOA: standard.2010.07.26

NASA officials say cameras mounted on Endeavour showed several pieces of debris falling away and hitting the shuttle during launch late Wednesday.

VOA: standard.2009.07.16

Buildings,homes,power and telephone lines collapsed, vehicles were washed away and many people were trapped under the debris.

VOA: standard.2010.08.06

When Nashville,Tennessee, was devastated by flooding this year, he helped people remove debris from their homes.

VOA: standard.2010.07.06

Japan has deployed land-to-air missile interceptors in case any debris threatens to fall on this country.

VOA: standard.2009.04.03

First,he had 1,500 tons of debris removed from a Russian field station in Antarctica.

VOA: standard.2009.12.10

Buildings are on fire and massive debris has piled on roads.

VOA: standard.2010.07.21

The explosions appear to have come from inside the buildings, with both the front and back windows of the Ritz Carlton blown off, spreading glass and debris across the street.

VOA: standard.2009.07.17

Spokesman Ken Haldin says a combination of testing by BP, the Environmental Protection Agency and landfill operators, including Waste Management, should ensure that debris from the oil cleanup can safely be added to household waste in these facilities.

VOA: standard.2010.08.05

The town of Marysville, which was almost obliterated in the disaster, remains a crime scene as investigators search the charred debris of buildings for more victims of a fire that was thought to have been started deliberately.

VOA: standard.2009.03.14