1、a member of the Siouan people of the Missouri river valley in NE Nebraska.
東北內布拉斯加州的密蘇里河流域的蘇族人。

2、They started back on their journey on the Missouri River on July 15, 1805.
直到1805年7月15日，他們才又開始在密穌里河上的旅程。

3、a member of the Siouan people of the Missouri river valley in NE Nebraska
東北內布拉斯加州的密蘇里河流域的蘇族人。

4、In the past two weeks, his team has focused on the Missouri River flooding.
在過去的兩周里，他的團隊致力于米索里河的洪水。

5、In the spring of 2011, it was the Missouri River flooding for months.
在2011年的春天，密蘇里河已經(jīng)泛濫數(shù)月。