Also,the root can stay in the ground for as long as three years, so it can be harvested as needed.

VOA: special.2010.06.08

If we had good boards, I think they could certainly do a better job of that than the government can."

VOA: special.2009.10.30

The goal with the new rickshaw is to increase the number of trips per day that the pullers can make.

VOA: special.2009.05.11

They noted that the grass can absorb and control the spread of harmful wastewaters, like those from pig farms.

VOA: special.2010.02.09

They say current tests show that the pouch can safely store the drug for as long as four months.

VOA: special.2010.05.24

At the same time,though, the two scientists found that the protein can also support the growth of cancer in some cells.

VOA: special.2010.05.18

But here,the many objects are stored behind glass so the public can explore the Met's rich collection of historical objects.

VOA: special.2010.08.04

The leaves make good salads when the plants are young, and the greens can be cooked when the plants are older.

VOA: special.2010.03.02

Professor Bartemeus says the study shows how human activities in the natural environment can change the travels of other organisms.

VOA: special.2010.03.02

The company can organize online publicity campaigns to try to limit the harm done by negative comments or bad news.

VOA: special.2011.07.22

But Adam Reed Tucker proves that the only limit to what the toy can do is a person's imagination.

VOA: special.2010.07.30

One reason is that heat from the sun can go through many of the building materials commonly found in cities.

VOA: special.2010.03.02

The artist can then add a second color of glass to make designs over the first layer of glass.

VOA: special.2009.09.16

Sweet potatoes, carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A.

VOA: special.2009.04.21