鸟类消亡时，随之而去的还有健康、食物、金钱和生态系统的服务功能。
When birds are lost, so are health, food, money, and ecosystem services.
知识流动是知识生态系统的重要功能之一。
Knowledge flow is one important function of knowledge ecosystem.
绿洲生态系统是一类独特的生态系统，具有独特的结构和功能。
Oasis-ecosystem is a kind of particular ecosystem. It has special structure and function.
能量流动是所有生态系统内在的共有的功能特征之一。
Energy flow is one of the inherent and common function characteristics of ecosystems.
能量流动是所有生态系统内在的共有的功能特征之一。
Energy flow is one of the inherent and common function characteristics of ecosystems.
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