The middle school students in the social transition stage are facing complex cultural ecological environment and the value choice of pluralistic cultures.
处在社会转型时期的中学生，面对着复杂的文化生态环境和多元文化的价值选择。
Nowadays, the media ecological environment includes five sides, which are social environment, institution environment, cultural environment, marketing environment and technical environment.
媒介生态环境包括：社会环境、制度环境、文化环境、市场环境、技术环境五个方面。
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