环境科学家佩·德雷塞尔认为，用未经处理的人类粪便来种植粮食，这种做法的社会和经济效益超过了健康风险。

Pay Drechsel, an environmental scientist, argues that the social and economic benefits of using untreated human waste to grow food outweigh the health risks.

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而延迟回报则往往和公众事件、经济、社会问题、科学、教育以及健康等方面的行为有关。

Delayed reward may be expected from news of public affairs, economic matters, social problems, science, education, and health.

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这个大学授予的学科学位包括教育、经济、护理、健康教育、数学和计算机科学。

The university offers degrees in education, business, nursing, health education, math and computer science.

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