求翻译：这就是美国联邦制确定的历史，我们必须知道，美国是一个有着自由，民主的大国，在全世界上美国是老大，我们必须要学习美国政治与其他作为比较，知道优缺点是什么意思？

This is determined by the history of American federalism, we must know that the U.S. is a country with free and democratic country, the United States is the leader in the world, we must learn from the U.S. as compared with other politically, to know the advantages and disadvantages

That is, the United States federal systems determine the history, we must know that the United States is a country with freedom, democracy, and the largest country in the world, the United States was the eldest, and we must learn from the United States as a comparison, know that political and other

This is the American federal system determination history, we must know, US is one has the freedom, the democratic great nation, in the world US is an eldest child, we must have to study the American politics to compare with other achievement, know the good and bad points

Are United States federalism to determine historical, we must knows, United States be a freedom, democratic country on worldwide United States oldest we must study United States political compared with other as know pros and cons

This is the American federal system determination history, we must know, US is one has the freedom, the democratic great nation, in the world US is an eldest child, we must have to study the American politics to compare with other achievement, know the good and bad points