我想这个比较简洁,应该符合你的要求.
A Brief Introduction of the USA
Located in the middle of the North America,the USA is the 4th largest country in the world,with an area of 9.3 million km2 and a population of about 300 million.It is made up of 50 states and Washington D.C.,its capital,which lies on the east coast.It has many famous large cities,like New York City,Los Angeles,Chicago,San Francisco,and so on.As with in China,the climate of the USA differs from place to place.In general,the winter is long as well as cold in the north,while it is mild in the south.
Not only is the USA a large country,but also it is a great country in the world.Established 230 years ago,it has developed into the most advanced country.It leads the whole world in many fields,such as electronic industry and space research.Also,it is home to many famous firms,of which Bone and Microsoft are two representatives.
The States is always compared to a melting pot.In other words,you can find various culture and customs in this country.
