Lewis and Clark journeyed into the American wilderness to find out what the U.S. had acquired when it purchased Louisiana.
路易斯和克拉克前往美国的荒野之地，想弄清楚美国购买路易斯安那州时获得了什么。
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Famous explorers of the north American frontier, Lewis and Clark arrived at the mouth of the Columbia River on November 14, 1805, in nearly starved circumstances.