"It really is very difficult to manage for both doctor and patient, " says Jack Ansell, a professor of medicine at Boston University.
"Both these men were well equipped with crampons and ice axes and they got into difficulties in what are really still very difficult conditions, " he said.
"And, so, after decades and decades and decades of this, the notion that the Kurds, the Sunni Arabs, the Shia Arabs can sit down and work out some sort of compromise American style is really a very difficult proposition for them to undertake, " Krepinevich said.
But I would just say, again, our efforts are really working to help the Japanese people deal with what is a very difficult and really tragic situation.
The Christian Democrats in Germany don't have that new liberal tradition, so I think it's very difficult to really push reforms through, and we really need these reforms.
To add to the confusion, many services on the internet are now nested within one another, making it very difficult to really keep track of the level of privacy that will be applied to any discreet bit of you own personal data or content.
"In the heat of battle when support is needed very quickly, nine times out of 10 it really does help to get troops out of very difficult positions, " he said.
Grown-up people find it very difficult to believe really wonderful things, unless they have what they call proof.
So, it's a really, it's a very difficult precedent to set once you start investigating, you know, one or handful of players for suspected steroid use.
Defense attorneys say it's very difficult, you can't really interrupt somebody who's testifying about the loss of a loved one.
Manchester City were really difficult to play against because they were very organised and compact waiting for the counter-attack, which they did very well.
Because we really have three separate problems, each on its own very difficult to solve.
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We're living in very tough financial times, we have to make really difficult choices.
"Until we really lay out what the milestones are, it will be very difficult to say what the right budget" is for the long term, Dr. Collins said.
She sensed at once that it was not so very difficult to make tar, and her careful labor really did help the tarworks.
It's simple to say, but very difficult to bring off, something that cannot be taught and really is hard to pin down, and it either works or it doesn't.
"It has been a very long and difficult winter, but now the waiting is finally over and I am really excited about tackling my second season with Scuderia Toro Rosso, " he said.
"While we appreciate that this is a very difficult decision for the league and owners, we hope it is understood that we really believe the time is now to bring the NBA back to Seattle, and that it is paramount that we do everything we can to put Seattle's best foot forward in this process, " Hansen said.
For Russia to continue to grow and develop it really is going to have to make a number of difficult, complicated, and expensive reforms to some very basic parts of its economic structure.
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And it's very difficult for the civil liberties organizations to get past this because the standard of proof is not really clear.
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