The sea is great, except that it beautiful, magnificent, magnanimous, there is a self-purification function.
大海之所以伟大，除了它美丽、壮阔、坦荡外，还有一种自我净化的功能。
Simultaneously the land also has from stable, the circulation and the self-purification function, is the renewable natural resource.
同时土地又具有自稳定、循环和自我净化功能，是可再生的自然资源。
Simultaneously the land also has from stable, the circulation and the self-purification function, is the renewable natural resource.
同时土地又具有自稳定、循环和自我净化功能，是可再生的自然资源。
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