Natural gas hydrates in nature exist mainly in marine. The natural conditions of marine sediments are the base of natural gas hydrates formation.

自然界中的天然气水合物资源主要存在于海洋中，海底的自然条件是形成天然气水合物的基础。

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Natural resources are things that exist in nature and can be used by people.

自然资源是自然界中存在的、可以为人类所利用的资源。

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Nature can only let us exist while arts create our mankind.

自然只让我们存在，而艺术创造我们的人类。

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The sovereign does not exist by nature but rather, Hobbes tells us again, the sovereignty is the product of art or science.

霍布斯又告诉我们说,国家不是生来就有的，而主权也只是科学和艺术的产物罢了。

耶鲁公开课 - 政治哲学导论课程节选

Most of the reasons which Coase outlined for the creation of the corporation in The Nature of the Firm no longer exist.

FORBES: China's Outdated Practice Of Capitalism

Forces from within are factors that reside in both our minds and our hearts, and exist because of the very nature of being human.

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In Bali, there is a belief that gods and goddesses exist in the elements of nature, so for Balinese, the spirit world and the human world are constantly interacting.

BBC: Changing lives and perceptions in Ubud