Many global problems, such as global warming, lack of natural resources, wars and famine, happen in one country, but will influence other countries. In economic realm, consider that a financial crisis—or a political crisis or natural disaster in one country can spell trouble for foreign companies, many of which are now multinational in that they rely on labor forces, equipment, and raw materials of other nations. Also, international cooperation is evident in the realm of inhibiting and fighting against the crimes such as international drug transaction and terrorism.
2、 其他
4) Several years ago, it was reported that the Gross National Income of 7 African nations was less than
one big firm in the United States.
5) 語言學家linguists預測,每兩個星期,將有一種語言在世界某個地方消亡。
6) 國家之間通過正式的方式:外交關系diplomatic relations、軍事和經濟同盟military and economic alliances、全球化組織global organizations如聯(lián)合國等鏈接。
也可以通過非正式方式:文化交流cultural exchanges、游客tourists、交換學生students exchanges、國際貿易international trade和非政府組織nongovernment organizations