Becarefulwhatyousayaroundyourdog.Itmightunderstandmoret...
問題詳情：Becarefulwhatyousayaroundyourdog.Itmightunderstandmorethanyouthink.AbordercollienamedRicorecognizesthenamesofabout200objects,sayresearchersinGermany.Thedogalsoappearstobeabletolearnnewwordsase...