![Modernzoosareverydifferentfromzoosbuiltfiftyyearsago.At...]( "Modernzoosareverydifferentfromzoosbuiltfiftyyearsago.At...")
- 问题详情：Modernzoosareverydifferentfromzoosbuiltfiftyyearsago.Atthattime,zooswereplaceswherepeoplecouldgotoseeanimalsfrommanypartsoftheworld.Theanimalslivedincageswithironbars,whichwereeasytokeepclean.However,fortheanimals,thecagesweresmallandimpossib...
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