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It mainly includes natural ecological system, social ecological system and spirit-ecological system.
地球生态系统大体包括自然生态系统、社会生态系统、精神生态系统；
youdao
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It mainly includes natural ecological system, social ecological system and spirit-ecological system.
地球生态系统大体包括自然生态系统、社会生态系统、精神生态系统；
youdao