Since the exchanges are owned by their members, this resistance is difficult to overcome.
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But the taint of scandal is difficult to overcome, and unfortunately it is hard to believe that Mr. Junker acted alone.
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However, Turner told BBC Radio Wales' Scrum V on the Radio programme that it would be difficult to overcome market forces.
One potential bidder said that lack of synergy and scale would be difficult to overcome for a private equity investor like his firm.
In 2011, Congress recognized that conflicting priorities and fundamental disagreements on the shape of the future budget were proving increasingly difficult to overcome.
These unpredictable and extreme events cast a pall over the stock market that was difficult to overcome, and included government intervention that affected the market.
The numbers of injured and dead are still relatively low compared to the number of vehicles affected, but public perception will be very difficult to overcome if any of them could have been avoided.
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But while factors like fierce competition and less full-time hiring are difficult obstacles to overcome, there are definitive steps interns can take to increase their chances of landing a salary.
School teachers gave me the love and unconditional regard I needed to overcome a difficult childhood.
First Solar has been focusing on its installations business to overcome the difficult situation in the panels market.
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Given those qualities, as well as the district's generally moderate bent, it will be difficult for Connelly's to overcome Allen's advantages.
But we are here tonight to remember and celebrate a man who inspired a people and a nation to overcome another difficult time.
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Instead you are presented with a deep weapon and gear upgrade system that Lara will have to strategically employ to overcome increasingly difficult enemies and environments, all with a unique Survival Action twist.
The key now is not to make it even more difficult by making mistakes later in life that are more challenging to overcome.
Even now, Rocha finds it difficult to speak of her heartbreak without being overcome by tears.
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Murray will have to overcome a far more difficult hurdle in the form of defending champion Nalbandian if he is to progress to the last four.
Journalists get the training and practice to be able to do this speedily every day, but it's perhaps not too difficult to learn, and allowing other people to edit and improve your work can help overcome sloppy writing or typos.
However, the transition was difficult, and although some countries like the Czech Republic and Slovenia were able to overcome the early years of transition, becoming the prosperous democracies that they are now, some others eventually adopted new types of autocracies.
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Greece has been locked for the past two weeks in difficult negotiations with the international creditors on the loan terms as the two sides work to overcome differences on a range of unpopular reforms.
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The first hurdle will be easily overcome, but the second is far more difficult, tied as it is to overall agreement on devolution.
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