This is going to be probably a homework at some point to do this. For now, let's take it for granted. Let's take it for granted that we know how to calculate this derivative from an equation of state like this.

这可能是将来的一个课后作业,现在，请把这当成理所当然的，理所当然地认为我们,知道怎样从一个状态,方程计算这样的微分式。

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But even the Hobbesian state, Hobbes admits himself, the Hobbesian state lives in the midst of a Hobbesian world; that is to say, the world of international relations is for Hobbes simply the state of nature at large.

不过他也承认，这霍布斯式的国家只能存在于,霍布斯式的世界状态里，而在这样的世界状态中,国家关系只是放大了的自然关系。

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