First, the exhaust fumes of cars and machines polluted the atmosphere in the city seriously, because of smoke from factory chimney, because the dirty and the garbage thrown topsy-turvy. River and lake are dirtied by dismiss toxic-chemical irresponsibly.See also: http://diendanlequydon.com/viewtopic.php?f=11&t=21557
đang được dịch, vui lòng đợi..
