/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: QuynhMaiChun https://cdn.slidesharecdn.com/profile-photo-QuynhMaiChun-48x48.jpg?cb=1523757161 kho tinh,kho hieu v�� c嘆n nhi畛�u ��i畛�u c畉�n kh叩m ph叩, h叩 h叩