美国的经济和国际贸易是全球经济和国际贸易的发动机之一,我国与美国贸易关系紧密,美国国际贸易海运货物的重量(货量)和价值(货值)的变化直接反映美国经济和国际贸易的变化,也会反映在其与各贸易区域海运货量或 The U.S. economy and international trade are one of the engines of the global economy and international trade. Our country has close trade relations with the United States. The changes in the weight (volume) and value (value) of U.S. international trade in shipping goods directly reflect the U.S. economy and international trade The changes will also be reflected in their volume of cargo shipped with each trade area or