They were no longer a series of small bands but lived in a large community with more elaborate social organization, probably grouped into clans of people of common descent.

他们不再是一些小群体，而是居住在一个大型的社会中，有更加复杂精细的社会组织，可能是以拥有共同的祖先的氏族来划分群体。

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Staying up late, an increasingly common phenomenon, can result in a series of health problems.

熬夜越发成为一种普遍的现象，但它会导致一系列健康问题。

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As you saw in the first article of this series, many common transaction pitfalls can affect transactional behavior and, consequently, diminish your data's integrity and consistency.

如本系列的第一篇文章所述，许多常见的事务陷阱都会影响到事务行为，并且由此会降低数据的完整性和一致性。

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The ten finalists presented their inventions made of common household products then competed in a series of events.

VOA: special.2009.10.15

President Obama reiterates his commitment to do everything in his power to implement a series of common sense measures that would reduce gun violence in America.

WHITEHOUSE: Our Top Stories

Chart Analysis : In either a bull or bear market, whether you are talking about a stock, ETF, or commodity, it is common to see a series of flag formations.

FORBES: Profit from Flag Formations

Among the main suggestions made by the contributors, a series of common challenges for peace and dialogue has been identified, including the separation of the political power from the exercise of journalism, the introduction of web-journalism in the university curricula, universal access and affordability of Internet, the promotion of peace initiatives and the need to establish linkages with civil society organizations.

UNESCO: Communication and Information