求翻译：介绍是人们在社交活动中必不可少的交际礼仪，使不相识者得以会面或结交的重要桥梁。介绍能帮助人们扩大友谊，不断被建立新的社会关系。不论是在中国还是在英国国家，在社交活动中陌生人相见一般需要人介绍，自我介绍要视情况而定是什么意思？

Introduction is that people in social activities essential communication etiquette, so did not know who to meet or make an important bridge. Introduced to help people expand friendship, continue to be the establishment of new social relations. Whether in China or in the UK countries, meet strangers

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The introduction is the people in the social activity the essential human relations etiquette, causes important bridge which being acquainted with one another cannot meet with or become friends with.The introduction can help the people to expand the friendship, is established unceasingly the new soc

Describes the communication is essential to people in social activities in etiquette, allows strangers to meet or to make an important bridge. Introduced to help people expand friendships, constantly build new social relations. Whether in China or in the United Kingdom national, strangers meet each

Describes the communication is essential to people in social activities in etiquette, allows strangers to meet or to make an important bridge. Introduced to help people expand friendships, constantly build new social relations. Whether in China or in the United Kingdom national, strangers meet each