/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: MaiDong1 https://cdn.slidesharecdn.com/profile-photo-MaiDong1-48x48.jpg?cb=1523217801 t畉�t c畉� ch畛� l�� ph湛 phi畉�m :-j s畛� nghi畛�p ti畛�n b畉�c m畛�i l�� quan tr畛�ng :-j