| 41. | A toll-free hot line will be staffed around the clock.
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| 42. | These men and women are working hard, around the clock,
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| 43. | Computers that are left on around the clock are vulnerable.
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| 44. | Controllers work around the clock, every day of the year.
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| 45. | We are doing all we can, working around the clock.
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| 46. | Plenty of manufacturing industries have always operated around the clock.
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| 47. | Both candidates have been purchasing time almost around the clock.
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| 48. | His wife, Irena, remained with him around the clock.
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| 49. | The field hospital's 10 doctors worked around the clock.
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| 50. | Front-end loaders shoveling away debris growled around the clock.
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