Modernzoosareverydifferentfromzoosbuiltfiftyyearsago.At...
問題詳情:Modernzoosareverydifferentfromzoosbuiltfiftyyearsago.Atthattime,zooswereplaceswherepeoplecouldgotoseeanimalsfrommanypartsoftheworld.Theanimalslivedincageswithironbars,whichwereeasytokeepclean....