湿地是地球上具有多功能的、独特的生态系统，是人类最重要的生存环境之一。
Wetlands are a special ecosystem with various ecological functions and one of the most important environments for the existence of mankind.
湿地是地球上具有重要环境功能的生态系统和多种生物的栖息地之一。
Wetland is one of ecosystems with important environmental functions and habitats for various biota on the earth.
湿地是自然界的生态系统和景观类型，具有巨大的资源潜力和环境功能。
Wetland, considered as a natural ecosystem and landscape style, has great resource potentiality and environmental function.
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