| 释义 |
Louisiana PurchaseNONE（无词性）- A territory of the western United States extending from the Mississippi River to the Rocky Mountains between the Gulf of Mexico and the Canadian border. It was purchased from France on April 30, 1803, for $15 million and officially explored by the Lewis and Clark expedition (1804-1806).路易斯安那购地：美国西部的一个区域，从密西西比延伸到落基山脉，在墨西哥湾和加拿大分界线之间。1803年4月30日法国以1500万美元的价格将其买走，并由路易斯和克拉克探险队(1804-1806期间）进行了官方探测
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