Becarefulwhatyousayaroundyourdog.Itmightunderstandmoret...
问题详情：Becarefulwhatyousayaroundyourdog.Itmightunderstandmorethanyouthink.AbordercollienamedRicorecognizesthenamesofabout200objects,sayresearchersinGermany.Thedogalsoappearstobeabletolearnnewwordsase...