This could be a serious problem. The shield protected the spacecraft from burning up from the extreme heat of re-entering the Earth's atmosphere.

VOA: special.2009.06.17

represented a time of promise. "This could not be happening" was the sentiment expressed as a growing crowd gathered around that black-and-white TV set.

VOA: special.2009.08.16

It was agreed this could be more easily done with the aid of a dam.

VOA: special.2009.08.12

This could make it easier for disorders to affect a large number of animals.

VOA: special.2009.05.05

Before this could happen, he offered to sell his country to the United States.

VOA: special.2010.02.18

Doctor Fosko says this could have resulted from differences between the men and women.

VOA: special.2010.07.06

And others,like the French naturalist Jean-Baptiste Lamark, had proposed ways this could happen.

VOA: special.2009.02.25

He says the competition this could create may also threaten international security.

VOA: special.2009.05.05

This could require three to four years of capturing and killing whales.

VOA: special.2011.06.29

She says this could make the changeover in design more popular.

VOA: special.2011.06.29

The doctors wanted to know how this could be known.

VOA: special.2009.12.15

Before this could happen, something very unexpected took place.

VOA: special.2010.04.22

This could lead to disease or insect damage.

VOA: special.2009.06.30

This could weaken or change any evidence.

VOA: special.2010.05.05