Many service members use social networks to communicate with their families or with the public.

VOA: special.2009.09.14

I'm also part of a variety of social service organizations which seek federal funding to carry out their programs.

我还参与了各类社会服务组织,它们寻求获得联邦资金以施行其计划。

普林斯顿公开课 - 人性课程节选

In 1889, the German Government decided to use the postal service as an information network to create Social Security.

889年，德国政府决定将邮政用作,建立的社会保障的信息网络。

耶鲁公开课 - 金融市场课程节选