Problems with social interaction, such as a lack of understanding and awareness of other people's feelings.

社交障碍，比如缺少对人们感觉的理解和意识。

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1Despite all the chatrooms and social networking sites, the lack of face-to-face interaction can make the world wide web a lonely place sometimes.

在现代社会，尽管聊天室和社交网站非常盛行，但是由于网上交友缺少面对面的沟通交流，因此，网络有时也会让人们感到孤独。

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When people lack adequate social interaction, they're more likely to take bigger risks with money, according to a study published in the June 2013 issue of Journal of Consumer Research.

据《消费者研究期刊》2013年六月份刊登的一项研究显示，当人们社交活动少时，他们有可能承担更大的财务风险。

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Even in highly populated urban areas, there are elderly-rich communities where members are living alone and suffering from a lack of social interaction.

FORBES: Social Interaction Study Highlights Loneliness and Isolation as Heath Risks for Elders

Most frequently cited is the lack of social interaction.

WSJ: For More Workers, Home Is Where the Office Is