Dodogsunderstandus?Becarefulwhatyousayaroundyourdog.Itm...
問題詳情：Dodogsunderstandus?Becarefulwhatyousayaroundyourdog.Itmightunderstandmorethanyouthink.Adog__61__(name)Ricorecognizesabout200objects,sayresearchersinGermany.Thedogalsoappearstobeabletolearnneww...