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2009年2月19日,联合国教科文组织(UNESCO)绘制了一个《全球濒危语言分布图》,在人类历史上第一次用“语言地图”的形式,向人们直观展示了全球部分族群的濒危母语现状,并分为5个等级:不安全
February 19, 2009, UNESCO (UNESCO) draws a “global endangered language map”, in the history of mankind for the first time in the form of “language map ” to show people the global part of the ethnic groups Endangered mother tongue status, and is divided into five levels: unsafe