The name of the work is “One World , One Dream”, which is the slogan of the Beijing 2008 Olympic Games. The background used to refer to this work is unifying the world. I built the “Mondo” (meaning: world) of various places of interest in the world. In the “Mondo” city, “Civitano” (meaning in English: world citizens) can live in any place of interest, even the pyramids, Tiananmen, Eiffel Tower, Taj Mahal, etc. You can also communicate with other “Civitano” from all over the world. “Civitano” represent their country of origin, as well as cultural labels such as history, culture, language, etc. of the original country. But in the “Mondo” city, the first task of all “Civitano” is to build the “Babel Tower.” Therefore, in order to build efficiently, all “Civitano” can only use one language, which is “Esperanto”. I chose “Esperanto” as the main language of my work because I needed a language that could represent the world’s mainstream languages. The translation of “Esperanto” in Chinese is: the language of the world. But ironically, a lot of references in “Esperanto” refer to Indo-European languages. In “Esperanto”, there is no shadow of Asian languages, let alone Chinese. In the works, I also use my native language, Chinese, and the language that now I use most, German, and English, the mainstream language in the world. These three languages plus Esperanto form a “frame” on the four sides of the screen, and also imply that the differences in language restrict the cross-cultural communication. Here, the work “One World , One Dream” also serves as the first part of the “Language Series”, which also provides context for the second and third works.