Modernmanhasclearedtheforestsforfarmlandandforwood,andh...
問題詳情：Modernmanhasclearedtheforestsforfarmlandandforwood,andhasalsocarelesslyburnedthem.Morethanthat,though,hehasalsointerfered(干預)withtheinvisiblebondsbetweenthelivingthingsintheforests.Therearem...