| 31. | "It's a tough nut to crack ."
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| 32. | Wolvesey was a tough nut to crack.
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| 33. | That's one of the main reasons why this thing is such a tough nut to crack ."
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| 34. | With the Israelis and the Palestinians, well, that was always going to be a tough nut to crack.
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| 35. | "That's a tough nut to crack,"
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| 36. | Winning Laotian cooperation for the Vietnamese to visit the sites has been " a tough nut to crack,"
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| 37. | "I think it's a tough nut to crack, " says Ed Brogan, auto analyst at Jardine Fleming Securities.
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| 38. | It looks like a tough nut to crack, " said Santos about the rebels'liberal use of land mines.
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| 39. | "I think it's a tough nut to crack, " said Miller, given that few Democrats support private accounts.
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| 40. | "He was a tough nut, a guy you wouldn't cheap shot because retaliation was part of his make up.
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