But professors at big schools say there is not enough time to write evaluations for each student in large classes.

VOA: special.2009.03.05

At the time, scientists believed that a person at the top of the mountain would only have enough oxygen to sleep.

VOA: special.2010.06.30

They also include exercise,eating healthy foods, getting enough rest and balancing the time spent working and playing.

VOA: special.2009.03.24

She became one of the few black people at the time wealthy enough to give huge amounts of money to help people and organizations.

VOA: special.2010.03.28

And this may be cool enough to keep foods fresh, at least for a short time.

VOA: special.2009.11.30

That means their households, at some time during the year, had difficulty providing enough food for all members because of a lack of resources.

VOA: special.2009.11.23

But many also say they do not have enough time to do the work themselves and are under great pressure to do well in school.

VOA: special.2009.04.23

He worked hard. In time,he earned enough money to take control of an iron factory.

VOA: special.2010.02.25

He says he had a difficult time finding enough lambs to do the job.

VOA: special.2009.07.14

When that keeps happening, the roots do not have enough time to recover.

VOA: special.2010.01.19

They said there was not enough time for a full investigation.

VOA: special.2010.03.04

They said she did not spend enough time on comparative studies.

VOA: special.2010.01.17

And the program includes a microfinance grant, money that she has actually made by selling us beads that she gets at one time, so that she can make a big enough step into a business that is going to be sustainable."

VOA: special.2010.06.28

Doug Szajda says that seemed like more than enough "At the time that IP version 4 was designed, the designers were anticipating perhaps thousands of users of the Internet someday, and certainly thinking that four billion addresses was many more than we would ever need."

VOA: special.2011.06.13