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。
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。
The Cordillera Range科迪勒拉山脉：Composed of the Coast Range, the Cascades1 and the Rocky Mountains.
科迪勒拉山脉由海岸山脉、卡斯卡德山与洛基山组成。
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。
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。
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。
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、非常重要的河流。它的流域面积达3225000平方公里。
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、休伦湖与安粗略湖。
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。
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.
黄石国家公园坐落于怀俄明州的北部区域。是世界上最古老的国家公园，是美国最大的野生保护区。
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。
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。
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.
唐人街是很多中国生活活、居住的区域，那里有很多中国门店、餐馆、夜总会。两条非常重要的唐人街分别在纽约和旧金山。
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区域。
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、罗德岛州与康涅狄格。这个区域主要以多山、多山谷、河流为特点。
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、科罗拉多州与新墨西哥州。
The Pacific Coast States太平洋沿岸诸州：Washington, Oregon and California.
太平洋沿岸诸州包含华盛顿州、俄勒冈州与加利弗尼亚州。
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。是这片国内上最高的山峰。
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。
