The experts say individual progress and not a set time period should always guide a decision to return to play.

VOA: special.2009.10.28

"I think Dubai went a little bit too fast and they borrowed too much money in a very short period of time."

VOA: special.2009.12.04

Others who want to graduate in three years must pay for the same education as four-year students, but in a shorter period of time.

VOA: special.2009.07.23

Miller examined this difficult period in American history by setting his play at another difficult time.

VOA: special.2009.11.29

Nash studied the works of seven important painters who lived during a one hundred year period, a time frame similar to that of jazz.

VOA: special.2010.03.24

When a baby's head is stuck in the birth canal for an extended period of time, it cuts off the blood supply to the woman's surrounding organs.

VOA: special.2010.08.09

The results suggested that people do act differently if they think they are working with a group for a short period of time instead of a long period.

VOA: special.2009.03.03

Their dreamy songs sound like they came from another time period.

VOA: special.2010.05.07

And over a period of time her grades fell completely.

VOA: special.2010.04.22

"Many mothers deliver at home in sub-Saharan Africa and it's very difficult for them to get to a hospital or clinic which may be miles away in that time period.

VOA: special.2010.05.24

"And what happens is we have mazes and the children are able to organize the robots and see if they can get them through the maze within a certain time period."

VOA: special.2010.07.28

So,to get a sense of what the regional moisture patterns have been, dryness and wetness over such a long period of time in great detail, I would call it a kind of victory for paleoclimate science."

VOA: special.2010.05.25

"This experiment is unique because six people will be isolated for a long period of time and will work autonomously."

VOA: standard.2010.06.02

It doesn't mean it's going to be easy. But,I think it can be over the period of time that we're talking about."

VOA: standard.2010.07.22