一个企业所面对的战略问题是如何找到一种方式，通过提供生态学可行的服务，既能为这一生态系统贡献价值，又能从中获取价值。
The strategic question for an enterprise is how to find way of both contributing value to the ecosystem, and drawing value from the ecosystem, through the provision of ecologically viable services.
生态学以往影响范围非常广，然而现在生态学已被视为对经济的一种充满了革新的“伟大转型”推动力。
Ecology matters as much as ever but now it is seen as the driver of an innovation-fuelled "great transformation" of the economy.
尤尼斯先生在农民田间学校学习了有关田间生态学的知识。农民田间学校是粮农组织开创的一种方法，首先在巴基斯坦采用，对棉农进行“有害生物综合防治”(IPM)的培训。
Mr Younis learned field ecology in a farmer field School, a method pioneered by FAO and first introduced in Pakistan to train cotton farmers in Integrated Pest Management (IPM).
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