| 1. | The rusty heap chugs along at barely 30 miles an hour.
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| 2. | Enterprise still chugs along on reconditioned warp-o-meters.
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| 3. | The original mix chugs along energetically until it hits the breakdown.
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| 4. | U . S . manufacturing, too, continues to chug along.
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| 5. | The music chugs along and Ms . Martins chugs around his partner.
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| 6. | The engine chugs along on a mere two cylinders.
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| 7. | Still, Midwestern manufacturing activity continues to chug along.
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| 8. | "We have an economy that's continuing to chug along.
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| 9. | All day Alvin chugs along the shoulder of the two-lane road.
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| 10. | I would much rather stay right in the middle and just chug along,
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