Todaytherearemanyfiresthaninthepast.Over100,000wildf...
問題詳情： Todaytherearemanyfiresthaninthepast.Over100,000wildfiresburneachyearinAmerica.Russiahas20,000to35,000wildfireseveryyear.Australiahasonaverage60,000eachyear.Thesefiresdestroy（損害）hugeareas...