An extremely low body temperature can cause the heart to beat so slowly that a pulse may be difficult to find.

VOA: special.2009.12.30

I did not want them to be difficult or to get in my hair while I was working on the computer.

VOA: special.2009.05.03

But they say finding injured birds in the huge spill and sending out boats to rescue them will be a difficult job.

VOA: special.2010.05.04

The issues must be treated carefully, or they will be difficult and painful if an elected official has to deal with them.

VOA: special.2009.12.06

They realize it can be difficult to balance college classes and a job during the school year.

VOA: special.2010.06.18

Studies have found that nicotine can be as difficult to resist as alcohol or the drug cocaine.

VOA: special.2010.03.09

But advisers say these can also be difficult sometimes for foreign students to get.

VOA: special.2009.05.28

It can be difficult to earn enough money for a family to survive.

VOA: special.2009.10.18

He says it will be difficult for Iraqi security forces to stop Sunni attacks, unless Sunnis themselves decide to stop them as they did in two thousand seven.

VOA: special.2009.08.22

But getting food to Fort Sumter would be a very difficult job.

VOA: special.2009.08.06

But it has been difficult for women to be successful scientists.

VOA: special.2009.05.13

And the fluid replacement solutions can also be difficult to find.

VOA: special.2009.11.09

So it might be difficult to imagine anything twice as big.

VOA: special.2009.09.22

"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