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大自然里,有很多生物为了能在弱肉强食的竞争中生存下来,形成了和同伴或者其它动物相互依存的关系。靠着这种互利互惠的关系,它们才得以在美丽的地球上繁衍生息。
In nature, many creatures survive in the jungle and form interdependent relationships with their peers or other animals. With this reciprocal and mutually beneficial relationship, they have been able to flourish on the beautiful earth.