Third, primary groups are fundamental because they serve as powerful instruments for social control.

第三，初级群体是基础，因为他们是社会控制的有力工具。

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Second, primary groups are fundamental because they provide the settings in which we meet most of our personal needs.

第二，主要群体是基本的，因为他们提供了供我们满足大多数个人需求的条件。

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Primary groups are fundamental to us and to society.

初级群体对于我们和社会起基础性作用。

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but to make their own. The primary or fundamental movements of the new school of the dance must have within them the seeds from which will evolve all other movements, each in turn to give birth to others in an unending sequence of still higher and greater expression,thoughts,and ideas.

VOA: special.2010.08.29

Land, which is a necessity of human existence, which is the original source of all wealth, which is strictly limited in extent, which is fixed in geographical position land, I say, differs from all other forms of property in these primary and fundamental conditions.

FORBES: The Case For Monetary Freedom

Quality primary education is not only a fundamental human right, but also an essential driver of human development, bringing benefits for health and poverty reduction.

FORBES: Connect

It must identify and understand the fundamental needs of its customer or primary client.

WHITEHOUSE: ABCing: Formula For Success