- 問題詳情: Learningasecondlanguagefuelschildren’sintelligenceandmakestheirjobprospectsbrighter.36thefactis,inU.S.A,asinmanyotherEnglishspeakingcountries,speakersoftwoormorelanguagesareinthe37.Eighty-fourpercentofUSpeoplearemonolingual(speakersofonl...
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