ADJ [usually ADJ n]横贯大陆的;穿越大陆的;(美国英语中通常指)横穿美国的 A transcontinental journey or route goes from one side of a continent to the other. In American English, transcontinental usually means from one side of the United States to the other. 横贯大陆的;穿越大陆的;(美国英语中通常指)横穿美国的
...in mid-nineteenth-century America, before the transcontinental railroad was built.