京京魅力
美国国会山（Capitol Hill）： Capitol Hill, aside from being a metonym for the United States Congress, is the largest historic residential neighborhood in Washington D.C., stretching easterly in front of the U.S. Capitol along wide avenues. It is one of the oldest residential communities in Washington, and with roughly 35,000 people in just under two square miles, it is also one of the most densely populated. As a geographic feature, Capitol Hill rises in the center of the District of Columbia and extends eastward. Pierre L'Enfant, as he began to develop his plan for the new Federal City in 1791, chose to locate the "Congress House" on the crest of the hill, facing the city, a site that L'Enfant characterized as a "pedestal waiting for a monument." The Capitol Hill neighborhood today straddles two quadrants of the city, Southeast and Northeast, and a large portion is now designated as the Capitol Hill historic district. The name Capitol Hill is often used to refer to both the historic district and to the larger neighborhood around it. To the east of Capitol Hill lies the Anacostia River, to the north is the H Street corridor, to the south are the Southeast/Southwest Freeway and the Washington Navy Yard, and to the west are the National Mall and the city's central business district. 曼哈顿（Manhattan）： Manhattan is one of the five boroughs of New York City, located primarily on Manhattan Island at the mouth of the Hudson River. New York County, which has the same boundaries as the Borough of Manhattan (and which should not be confused with New York City), is the most densely populated county in the United States, with a 2007 population of 1,620,867 living in a land area of 22.96 square miles (59.47 km²), or 70,595 residents per square mile (27,267/km²). It is also one of the wealthiest counties in the United States, with a 2005 personal income per capita above $100,000.Manhattan is the third-largest of New York's five boroughs in population but the smallest in area. It consists of Manhattan Island and several small adjacent islands: Roosevelt Island, Randall's Island, Ward's Island, Governors Island, Liberty Island, part of Ellis Island,and U Thant Island; as well as Marble Hill, a small section on the mainland adjacent to the Bronx. Manhattan is a major commercial, financial, and cultural center of both the United States and the world.Most major radio, television, and telecommunications companies in the United States are based here, as well as many news, magazine, book, and other media publishers. Manhattan has many famous landmarks, tourist attractions, museums, and universities. It is also home to the headquarters of the United Nations. Manhattan has the largest central business district in the United States, is the site of both the New York Stock Exchange and NASDAQ, and is the home to the largest number of corporate headquarters in the nation. It is the center of New York City and the New York metropolitan region, hosting the seat of city government and a large portion of the area's employment, business, and recreational activities. The name Manhattan derives from the word Manna-hata, as written in the 1609 logbook of Robert Juet, an officer on Henry Hudson's yacht Halve Maen (Half Moon).A 1610 map depicts the name Manahata twice, on both the west and east sides of the Mauritius River (later named the Hudson River). The word "Manhattan" has been translated as "island of many hills" from the Lenape language.The Encyclopedia of New York City offers other derivations, including from the Munsee dialect of Lenape: manahachtanienk ("place of general inebriation"), manahatouh ("place where timber is procured for bows and arrows"), or menatay ("island"). 密西西比河（Mississippi River）： The Mississippi River is the second-longest river in the United States,with a length of 2,320 miles (3,730 km)from its source in Lake Itasca in Minnesota to its mouth in the Gulf of Mexico. The Mississippi River is part of the Missouri-Mississippi river system, which is the largest river system in North America and among the largest in the world: by length (3,900 miles (6,300 km)), it is the fourth longest, and by its average discharge of 572,000 cu ft/s (16,200 m³/s), it is the tenth largest. The name Mississippi is derived from the Ojibwe word misi
stonegossard
历史上曼哈顿不是人名，当年荷兰人灌醉了印第安人首领，便宜买下了这个岛，印第安人喊道“Manhattern”，是印第安语上当受骗的意思，对方不明其意，以为岛的名字叫Manhattan，故以之为名
美味童鞋
The Mississippi River is the longest river in the United States. It is more than 3,700 kilometers long. The Mississippi begins as a small creek and at the Gulf of Mexico it is nearly two kilometers wide. In some places it is very deep and in other places it is shallow. The river gets water from rain, snow, hail, and ice. Many small rivers run into the Mississippi. Half of the rain falling in the United States flows into the Mississippi. Boats can go from the Gulf of Mexico up the Mississippi for 1,600 kilometers. Many of the boats are barges. Barges carry freight of many kinds up the river and down the river.
小麻烦ly
简单的：The Mississippi River is the second longest river system in the United States. Only the Missouri River is longer. The Mississippi flows 2,340 miles (3,766 kilometers) from its source in northwestern Minnesota to its mouth in the Gulf of Mexico.难点的：The word, Mississippi probably comes from a combination of Chippewa words (mici and zibi) meaning "great river" or "great water." It was first written as "Michi Sepe" by Lieutenant Henri de Tonti traveling with the explorer La Salle. The Mississippi and its tributaries drain almost all the plains between the Appalachian Mountains and the Rocky Mountains. Its drainage basin is the third largest in the world, exceeded in size only by the watersheds of the Amazon and Congo Rivers. The drainage basin covers 1,247,300 square miles (3,230,490 square kilometers) in 31 states and 2 Canadian provinces. This area encompasses the nation's most productive agricultural and industrial regions. The Mississippi is the nation's chief navigable water route. Barges and towboats on the Mississippi River System carry sixty percent of the agricultural goods, industrial products, and raw materials transported on inland waterways. The Mississippi River and its valley also support many kinds of animals and plants including freshwater fishes, birds, deer, raccoons, otters, mink, and a variety of forest trees. But pollution from agriculture and industry seriously threaten the life of the Mississippi.
0密星猛龙0
曼哈顿（英文：Manhattan）是美国纽约市5个行政区之中人口最稠密的一个，也是最小的一个行政区。曼哈顿主要由一个岛组成，并被东河、哈得孙河以及哈莱姆河包围。曼哈顿被形容为整个美国的经济和文化中心，是纽约市中央商务区所在地，世界上摩天大楼最集中的地区，汇集了世界500强中绝大部分公司的总部，也是联合国总部的所在地。下曼哈顿的华尔街是世界上最重要的金融中心，有纽约证券交易所和纳斯达克。
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