In recent years, it has been known gradually that ecosystem service functions are the base of mankind subsistence and the modern civilization.
近年来，人们逐渐认识到，生态系统服务功能是人类生存与现代文明的基础。
In recent years, it has been known gradually that ecosystem service functions are the base of mankind subsistence and the modern civilization.
近年来，人们逐渐认识到，生态系统服务功能是人类生存与现代文明的基础。
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