2015年,习近平主席访问美国时,正式宣布2016年为“中美旅游年”。中国是世界上最大的发展中国家,美国是世界上最大的发达国家,两国经济总量占世界三分之一、人口之和占世界四分之一、贸易总量占世界五分之一。中美关系早已超越双边范畴,已成为世界上最重要的双边关系之一,产生着越来越大的全局性影响。 In 2015, when President Xi Jinping visited the United States, 2016 was officially announced as the “China-US Year of Tourism.” China is the largest developing country in the world. The United States is the largest developed country in the world. The total economic output in the two countries accounts for one third of the world’s population. The sum of its population makes up one-fourth of the world’s total. Its trade volume accounts for one-fifth of the world’s total . The relations between China and the United States have already gone beyond bilateral scope and have become one of the most important bilateral relations in the world, with an increasingly larger overall impact.