/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: nguyenttrung543 https://public.slidesharecdn.com/v2/images/profile-picture.png gi坦 th畛�i ��i m達i kh担ng d畛�ng kh担ng ch畛� ai ��畉�n b棚n, gi坦 m達i c担 ��董n ��畛�i l�� b畛� kh畛�-----Nh動ng do hem bi畉�t b董i------Cho n棚n ta kh担ng bao gi畛� kh畛�