Reading is solitary, but is also a social act.

阅读虽属孤者，但也是种社会行为。

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Marriage is individual act in appearance, but social act in nature.

婚姻从表象上是个人行为，从本质上是社会行为。

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Kneeling, in Chinese culture, is a complex social act with multiple layers of meaning.

下跪，在中国文化里是一种复杂的社会行为，有着多层含义。

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Early in his career, he continued President Kennedy's desire for social change by helping to pass the Civil Rights Act of Nineteen Sixty-four.

VOA: special.2009.09.13

There is social, which is the study of how people act in groups, how people act with other people.

还有社会心理学,主要研究人类的群体行为,如何与他人交流

耶鲁公开课 - 心理学导论课程节选

You may think you've gotten away with something, but every act of social exploitation, every act of moral corruption, pollutes the sanctuary more and more until such time as God is driven out entirely and human society is devoured by its own viciousness and death-dealing.

犯了罪的人也许认为自己侥幸逃过一劫，然而他对所作的每一个行为，每一次的道德堕落，都会越来越玷污圣所,知道有一天上帝完全弃圣所而去,人类社会充斥着我们自身的邪恶和毁灭行为。

耶鲁公开课 - 旧约导论课程节选

People want to be social, and shopping is a social act in itself.

FORBES: Attention Facebook Shoppers: Get Ready For F-Commerce

The core idea: gift giving is a fundamentally social act.

FORBES: Wrapp: Zennstrom-Backed Startup Reinvents The Gift Card

Congress passed the Medicare and Medicaid laws in 1965 as amendments to the Social Security Act.

WSJ: Here's a Funny Idea: Medicare Laws That Are Easy to Read