Todaytherearemanyfiresthaninthepast.Over100,000wildf...
问题详情： Todaytherearemanyfiresthaninthepast.Over100,000wildfiresburneachyearinAmerica.Russiahas20,000to35,000wildfireseveryyear.Australiahasonaverage60,000eachyear.Thesefiresdestroy（损害）hugeareas...