/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: tuanhoangmanh https://cdn.slidesharecdn.com/profile-photo-tuanhoangmanh-48x48.jpg?cb=1658823471 Don gian la` 1 nguoi don gian khong co gi phuc tap do toi qua don gian don gian den noi to^i' gian khong the don gian duoc nua!