求关于社交网络看法的英语作文,或者是对解决环境问题做法的看法,400字...答:社交网络看法的英语作文 A social network is a social structure made up of individuals called "nodes", which are tied by one or more specific types of interdependency, such as friendship, kinship, common interest, financial exchange, dislike, sexual relationships, or relationships of ...