2003年初美国书籍的进出口继续延续近五年来的发展趋势:进口增长,出口减少。在这一时期,进口增长了近30%,而出口减少了近10%。然而,预计在2004年末,进口增长会趋向缓和,而出口额有望上涨。三种经济形势可以解释这一现象。首先,从1988年以来,美国的经济及消费量增长迅速,比一些 In the beginning of 2003, the import and export of American books continued their development trend in the past five years: the growth of imports and the decrease of exports. During this period, imports increased by nearly 30%, while exports decreased by nearly 10%. However, it is expected that by the end of 2004 import growth will tend to ease while exports are expected to rise. Three economic situations explain this phenomenon. First, since 1988, the economy and consumption of the United States have been growing at a faster rate than some