Forest is one of the main terrestrial ecosystems which human being lives on.

森林是人类赖以生存的主要陆地生态系统之一。

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There are highly sensitive and delicately balanced ecosystems in the forest.

森林里有高度敏感、灵敏平衡的各种生态系统。

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There are highly sensitive and delicately balanced ecosystems in the forest.

森林里有高度敏感、灵敏平衡的各种生态系统。

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