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the fall line瀑布线:a point where water-falls or rapids suddenly drop from a higher level to the lower one.
瀑布线指的是瀑布急速地从高处向低处流泻的点。
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the appalachian range阿巴拉契亚山脉:1200 miles long,consists of the piedmont plateau, appalachian plateaus and appalachian range.
阿巴拉契亚山脉全场1200英里,由皮德蒙特高原、阿巴拉契亚高原及阿巴拉契亚山脉组成。
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the cordillera range科迪勒拉山脉:composed of the coast range, the 1 and the rocky mountains.
科迪勒拉山脉由海岸山脉、卡斯卡德山以及洛基山组成。
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the great basin大盆地:the part between the colorado and columbia plateaus.
指的是科罗拉多和哥伦比亚高地之间的部分。
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the great central plain中部大平原:the land mass between the rocky mountains and the appalachians.
指的是洛基山和阿巴拉伊亚山之间的平原。
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the great plain大平原:the western part of the central plain.
大平原:指的是中部平原以西的部分。
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the mississippi river密西西比河:the longest, the most important river in the u.s.a. . it has a drainage area of 3225000 square kilometers.
密西西比河是美国最长、最重要的河流。它的流域面积达3225000平方公里。
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the five great lakes北美五大湖:lake michigan, superior, erie, huron and ontario.
北美五太湖指的是密歇根湖、苏必利尔湖、伊利湖、休伦湖以及安大略湖。
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the niagara falls尼亚加拉瀑布:famous falls in north america, 1240 meters wide, the drop averages 49 meters.
尼亚加拉瀑布是北美最著名的瀑布,有1240米宽,平均落差为49米。
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yellow stone national park黄石国家公园:located in the northern part of wyoming. it is the oldest national park in the world and the largest wildlife preserve in the u.s.a.
黄石国家公园位于怀俄明州的北部地区。是世界上最古老的国家公园,是美国最大的野生保护区。
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grand canyon大峡谷:in northern arizona, one of the great natural wonders of the world. it measures about 277 miles long, up to 18 miles wide, and more than a mile deep. its walls show layers that tell the story of the formation of the earth.
大峡谷在亚利桑那州的北部,是世界上最伟大的自然奇迹之一。它约有277英里长,18英里宽,约1英里深。它的墙壁断层记录了地球形成的过程。
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old faithful老忠实喷泉:the most famous gayer in yellowstone national park, erupting more than l00 feet in the air about every 73 minutes.
老忠实喷泉是黄石国家公园最著名的喷泉,每73分钟向空中喷水100英尺多高。
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chinatown唐人街:an area in a city where many chinese people live and where are chinese shops, restaurants, clubs; two, important chinatowns: new york city and san francisco.
唐人街是许多中国人生活、居住的地区,那里有许多中国店铺、饭店、夜总会。两条最重要的唐人街分别在纽约和旧金山。
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indian reservation印第安保留地:it refers to the barren desert regions where only indians live exclusively.
印第安保留地指的是专门给印第安人居住的贫瘠的沙漠地区。
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new england新英格兰:it consists of six states: maine, new hampshire, vermont, massachusetts, rhode island and connecticut. this region is featured with mountains, valleys, rivers.
新英格兰由六个州组成:缅因州、新罕布什尔州、佛蒙特州、马萨诸塞州、罗德岛州以及康涅狄格。这个地区主要以多山、多山谷、河流为特征。
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the mountain states山地诸州:montana, wyoming, colorado, and new mexico.
山地诸州指的是蒙大拿州、怀俄明州、科罗拉多州以及新墨西哥州。
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the pacific coast states太平洋沿岸诸州:washington, oregon and california.
太平洋沿岸诸州包括华盛顿州、俄勒冈州以及加利弗尼亚州。
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mount mckinley 麦金利山:6187 meters high, on the middle of the alaska, the highest peak on this continent.
麦金利山高达6187米。在阿拉斯加的中部。是这片大陆上最高的山峰。
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pearl harbor 珍珠港:the base of the pacific fleet of the u.s.a. near the city of honolulu in hawaii.
珍珠港是美国太平洋舰队的基地,在夏威夷的火奴鲁鲁市附近。