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| 81. | Spector's team, who also adjusted for body weight, smoking, economic status and physical activity at |
| 在排除体重、吸烟、经济状况和工作中的身体活动量等因素的影响后，斯派科特领导的研究小组发现，每周进行一至一个半小时的适度锻炼仍可以让你年轻四岁。 |
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| 82. | There is an important corollary to the skill of the invisible hand in guiding economic activity: When |
| 关于看不见的手在指引经济活动中的技巧有一个重要推论：当政府阻止价格根据供求自发地调整时，它就限制了看不见的手协调组成经济的千百万家庭和企业的能力。 |
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| 83. | It depicts the persistent underlying stability in economic relations or business activity over a period |
| 它描述了一定年份期间经济关系或商业活动中持续的潜在稳定性。 |
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| 84. | The paper discusses safety investment and safety economic benefit in safety activity. |
| 文章尝试对安全活动中的安全投资和安全经济效益进行一些探讨。 |
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