The level of complexity here refers to the organization of people into large, diverse groups, and densely populated communities.

这里的复杂程度指的是把人们组织成大型的、多样化的群体和人口密集的社区。

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"For consciousness to evolve, a brain with a threshold level of complexity and capacity is required," he added.

“大脑需要具备一定的复杂性和容量，才能进化出意识。”他补充说。

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The rise of the mobile phone has recently added a new level of complexity to the process of retail reinvention.

最近，手机的兴起使零售业的再创造过程变得更加复杂。

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I want to remind you that we were talking at a fairly high level about complexity.

我想提醒大家我们以前,是在一个相当高的高度上讨论复杂度问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

Unfortunately the complexity level of our tax laws often makes it difficult to find and utilize those tax benefits and incentives.

FORBES: Tax Complexity, Confusion And Compliance

In Europe, leading operators face strong competition from challenger carriers and thus feel they have an incentive to continue increasing phone plan complexity level.

FORBES: Finnish iPhone Users Misjudge How Much They Overspend

The pervasive complexity level of our tax system creates a barrier for taxpayers, wealthy or not, in their annual self-assessment attempt to arrive at a substantially correct determination of their tax.

FORBES: Tax Complexity, Confusion And Compliance