Travel: Speak Chinese on the bus in Korea. Although Koreans don't understand, they can tell that I'm from China?

Of course, you can also not listen. You can tell by the appearance. Students in the school can tell at a glance whether they are Koreans, Japanese, Koreans or other Koreans. In fact, you can see which country a white man is from if you watch more.

Although I don't understand the language, the pronunciation of Japanese and Chinese is very different.