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1·The United States acquired the land from France as part of the Louisiana Purchase in 1803.

美国在1803年的路易西安那购买案中，从法国手中取得了这一片土地。

2·During this decade the Louisiana Purchase Exposition opened in St. Louis and people flocked to see it.

在这十年里，圣路易世界博览会(Louisiana Purchase Exposition，全称路易西安那收购案博览会)在圣路易斯开幕，参观的人们蜂涌前往。

3·The Louisiana Purchase would prove to be one of the most profitable real estate transactions ever made.

路易斯安那交易可以算作有史以来购买者获益最丰厚的地产交易了。

4·It's a name most often associated with Meriwether Lewis, one of the explorers to set off across the Louisiana Purchase in 1803.

这个名字在人们的记忆中常常和梅里韦瑟·刘易斯这个人联系在一起，这是一个曾在1803年纵横在美属路易斯安那州土地上的探险家。

5·Most of the area passed to the United States through the Louisiana Purchase of 803 and was explored by Lewis and Clark in 805 and 80 '.

大部分地区通过803年路易斯安那的购买归属美国，路易斯和克拉克在805年和80 '年勘查了此地。

6·Once in office, Jefferson extended slavery with the Louisiana Purchase in 1803; the new land was carved into 13 states, including three slave states.

入主白宫以后，杰弗逊在1803年通过购买路易斯·安娜扩大了奴隶制；这片新的土地后来被分为13个州，其中包括了三个蓄奴州。

7·Once in office, Jefferson extended slavery with the Louisiana Purchase in 1803; the new land was carved into 13 states, including three slave states.

杰斐逊当权期间，曾通过1803年购买路易斯安那州进一步拓展了奴隶制的存在范围：新大陆被分成13个州，包括3个实行奴隶制的州。

8·First explored by the French in the mid-7th century, the area became part of the United States through the Treaty of Paris (783) and the Louisiana Purchase (803). St.

在7世纪中期法国人开始探索这一地区，后通过巴黎条约(783年)和路易斯安那置地(803年)成为美国的一部分。

9·First explored by the French in the mid-17th century, the area became part of the United States through the Treaty of Paris (1783) and the Louisiana Purchase (1803). St.

在17世纪中期法国人开始探索这一地区，后通过巴黎条约（1783年）和路易斯安那置地（1803年）成为美国的一部分。

10·First explored by the Spanish in the 'th and 7th centuries, the region was added to the United States through the Louisiana Purchase (803) and a cession by Mexico (848).

于'和7世纪首先被西班牙人探险发现，通过路易斯安那购买(803年)和墨西哥的割让(848年)而加入美国版图。