The book tells the story of an ordinary Chinese woman who grew up in China and left for the US for study and work. In this book, the author shares her feelings of the 30-plus years’ zero-distance observation of the American society in the eyes of an engineer and in the capacity of a Chinese. Most chapters give an account of the author’s own experience in the US, there are also matter-of-fact analyses of what she has seen and heard while reading books, attending lectures and watching the news. The content involves the US primary and secondary education, medical insurance and retirement, legislation and law enforcement, democracy and hot topics, etc. Through in-depth observation and thinking, the author traces the roots of American social reality, rather than giving a casual description or a superficial assessment of value, which fully demonstrates the rigorous work style of a senior engineer who stresses details, logic and effect while analyzing problems.