名词
中文翻译：关键石生态系统
同义词：
['keystone biome', 'keystone community', 'keystone habitat']
例句：
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1. Thekeystone ecosystem is the foundation of the entire ecosystem.
关键石生态系统是整个生态系统的基础。
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2.The keystone ecosystem plays a crucial role in maintaining biodiversity.
关键石生态系统在维持生物多样性方面起着至关重要的作用。
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3.The keystone ecosystem is threatened by human activities, which can have significant impacts on the entire ecosystem.
由于人类活动的威胁，关键石生态系统面临严重威胁，这会对整个生态系统产生重大影响。