| 41. | I answer meekly because I know how she feels about physical exertion.
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| 42. | For that act of exertion, she implied, we owed her.
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| 43. | It's a sore back and lungs that burn from exertion.
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| 44. | This coming year will require more than the usual exertion from us.
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| 45. | Further exertions will be required to help them toward agreement.
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| 46. | Unlike canoeing or kayaking, tubing requires scant physical exertion.
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| 47. | The pain is characteristically precipitated by exertion and is relieved by rest.
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| 48. | Often people with bad hearts suffer chest pain during exertion.
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| 49. | Abduction of the vocal folds is important during physical exertion.
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| 50. | The introduction of modern transportation such as automobiles also decreased physical exertion.
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