Intercourse on cyberspace, possessing new attributes human traditional social intercourse doesn't relatively have, paves a new way in the history of human intercourse.

网络交往具有人类传统社会交往方式所无法具备的全新特征，实现了交往史上的伟大变革。

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Zhu Hai is a typical city of immigrants. The non-native people, like isolated islands in social intercourse network, have difficulty in forming the identification and sense of belongingness.

珠海是一座典型的移民城市，然而各阶层外来务工人员由于人际交往缺乏和社会网络的“孤岛化”，对城市缺乏认同感和归属感。

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PE teachers in the coming century should have inflexible devotion to their work, broad and profound knowledge, greater ability of teaching, teaching research and social intercourse.

新世纪体育教师必须具备执着的事业心、渊博的知识、较强的教学能力和教学研究能力以及社交活动能力。

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