Manyoftheworld’slanguagesaredisappearingasmoderncommunications，migration(人口迁移)andpopulationgrowthendtheisolationofethnicgroups．Atleasthalftheworld’s6，000languageswilllikelydieoutinthenextcenturyandonly5aresafe，meaningtheyarespokenbyatleastlmillionpeopleandreceivestatebacking，expertssay．
Manyoftheworld’slanguagesaredisappearingasmoderncommunications，migration(人口迁移)andpopulationgrowthendtheisolationofethnicgroups．Atleasthalftheworld’s6，000languageswilllikelydieoutinthenextcenturyandonly5aresafe，meaningtheyarespokenbyatleastlmillionpeopleandreceivestatebacking，expertssay．
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