/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: vkausvn https://public.slidesharecdn.com/v2/images/profile-picture.png Ch炭ng ta sinh ra tr棚n cu畛�c ��畛�i n��y ��畛� bi畉�n nh畛�ng gi畉�c m董 th��nh hi畛�n th畛�c... ��董n gi畉�n, hi畛�u qu��, ph湛 h畛�p