Exports as a share of total U.S. production had increased dramatically since World War II, and more U.S. workers were exposed to the vagaries of the international marketplace. 第二次世界大戰以來(lái),作為美國生產(chǎn)總量的一部分,美國的出口額迅速增加,因而就有更多的美國工人受到國際市場(chǎng)變化的直接影響。