| 1. | The planetoid's heavy iron core burrowed into the Earth.
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| 2. | Nearby, a plump armadillo burrowed in the dirt for insects.
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| 3. | Divorced and with no children, she burrowed into her science.
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| 4. | These terrorists had burrowed in our country for over two years.
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| 5. | It was a day in which the president burrowed into details.
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| 6. | He was not going up, so he burrowed in.
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| 7. | Glennie burrowed around and found as much as she could.
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| 8. | I was frightened to discover the enemy had burrowed inside my head.
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| 9. | Timber said as he burrowed his head into Said's shoulder.
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| 10. | He burrowed into the wreckage of Lawrence's life.
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