living far away from home, students will suffer from loneliness and homesickness. Overseas students often fell disoriented and depressed for lack of adequate knowledge and understanding of the local customs and lifestyle. Secondly, many students do not want to return to their country after graduation because most of them want to seek a more comfortable life and brighter future overseas. This may result in a serious brain-drain and our country will inevitably incur a huge loss of talents.