| 21. | "Record companies have been a tough nut to crack, " said bass Barry Carl.
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| 22. | "It's a tough nut to crack as to what Haiti needs more of ."
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| 23. | That's one of the main reasons why this thing is such a tough nut to crack ."
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| 24. | With the Israelis and the Palestinians, well, that was always going to be a tough nut to crack.
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| 25. | But the local phone business is proving a tough nut to crack for even the largest and best financed cable companies.
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| 26. | That's a tough nut to crack for the likes of Red Bullet, Snuck In, and Hugh Hefner.
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| 27. | When Martin suggested then that TMS would be a tough nut to crack, turns out he was being politically correct.
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| 28. | Winning Laotian cooperation for the Vietnamese to visit the sites has been " a tough nut to crack,"
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| 29. | Pakistan enjoyed territorial supremacy throughout the match against Spain, but found Spanish goalkeeper Bernardino Herrera a tough nut to crack.
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| 30. | In the 20 years after their international debut in 1976, the Americans developed a cachet as tough nuts to crack.
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