Attempts to foresee epidemics such as these have traditionally relied on fieldwork on the ground.

试图预知这样的流行病，传统上依赖于地面上的野外作业。

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Attempts to foresee epidemics such as these have traditionally relied on fieldwork on the ground. This is often slow and expensive.

传统上来说，类似的预测大流感的尝试依靠的是地面实地考察，通常缓慢而昂贵。

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The research mainly based on fieldwork and combined with the analysis of literature, guided by the theory of educational anthropology.

本研究以田野考察为主，同时结合相关文献分析和教育人类学理论指导。

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UNESCO's unique role within the UN family of preserving the universal heritage of humankind begins at the highest legal and intergovernmental levels, descending through the practical and technical levels, down to grass-roots advocacy and hands-on fieldwork.

UNESCO: CULTURE

Meanwhile, dozens of planetary scientists working from a nearby base have struggled with their own challenges as they conduct fieldwork on the island, an icy, rocky tundra that remains bathed in light night and day during the Arctic summer.

CNN: Mars 'colonists' undaunted by bad luck, punishing weather

These reports are based on extensive research, fieldwork, interviews and professional experience.

UNESCO: CULTURE