Ecotourismisacombinationofecology(thestudyofsystemsofli...
問題詳情：Ecotourismisacombinationofecology(thestudyofsystemsoflivingthings)andtourism.Itis___51___“responsibletraveltonaturalareasthatpreservestheenvironmentandimprovesthewelfareofthelocalpeople”byth...