Joke Collection Website - Cold jokes - I saw it in the joke, and after searching online, it seems that it originated from the same joke. I want to ask you, is this an idiom? Where does it come from?

I saw it in the joke, and after searching online, it seems that it originated from the same joke. I want to ask you, is this an idiom? Where does it come from?

"Chinese Dictionary" has not yet been collected. "Ciyuan" (1979 edition) explains "negative Ji" as: "It means carrying Ji to travel. Ji, book box." It also comes from ancient books such as "Baopuzi" and "Book of Jin". An example of this. This word is often seen in newspapers and other media today, mostly referring to studying abroad, such as "Studying in Japan" (Studying in Japan) and "Studying in Paris".