/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: letrungnguyen https://cdn.slidesharecdn.com/profile-photo-letrungnguyen-48x48.jpg?cb=1577263052 畛� ��畛�i kh担ng c坦 con ��動畛�ng c湛ng ch畛� c坦 nh畛�ng ranh gi畛�i, ��i畛�u c畛�t y畉�u l�� l��m th畉� n��o ��畛� b動畛�c qua nh畛�ng ranh gi畛�i 畉�y ...