This is a very interesting short documentary. Why are Chinese boys less than American girls? Perhaps you will have the same question. You can only see foreigners on the street staring at Chinese girls, but the other way around is very few. Is it race? Is it culture? The film director---an international student interviewed Chinese boys and girls studying in the United States, American girls, sociology professors, ABC and so on. Let them tell you the answer! Xiaobian turned to ask the next program when he sent this article, colleague, why is this, his eyes did not leave the screen at all, saying: "size problem."