| 41. | But attempts such as these have run up against a brick wall _ so far.
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| 42. | Sometimes, the center's rules run up against children's routines.
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| 43. | But any obsession with racial purity must run up against the historical reality of intermarriage.
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| 44. | "I've never run up against anything like it ."
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| 45. | Let him run up against 3RR and get blocked.
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| 46. | Tanks that big often run up against opposition from local fire departments concerned about accidents.
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| 47. | And then we run up against stone walls.
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| 48. | Sometimes one bipartisan team runs up against another.
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| 49. | Sometimes you just run up against a buzzsaw.
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| 50. | Some people think the Bulls will be the toughest thing the Sonics have run up against.
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