1. What is American dream?

英文版的解释？

The American Dream is a national ethos of the United States, a set of ideals in which freedom includes the opportunity for prosperity and success, and an upward social mobility achieved through hard work. In the definition of the American Dream by James Truslow Adams in 1931, "life should be better and richer and fuller for everyone, with opportunity for each according to ability or achievement" regardless of social class or circumstances of birth.[1]

The idea of the American Dream is rooted in the United States Declaration of Independence which proclaims that "all men are created equal" and that they are "endowed by their Creator with certain inalienable Rights" including "Life, Liberty and the pursuit of Happiness."
wiki百科的解释，够权威不？

no matter what country you are from, what background do you havethe essence of the american dream, i think, or what race you belong to, is the idea that it is possible for every hard-working individual to succeed

什么是美国人的愿望

英雄主义 heroism 自由 freedom