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Alllanguageschangeovertime,butsomechangeatafasterrateth...
问题详情:Alllanguageschangeovertime,butsomechangeatafasterratethanothers.   36   Themostimportantfactorsarethenumberofpeoplewhospeakalanguage,wheretheyliveandwhethertheymovearound,theimportanceof...
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