English spoken in Britain and America can be divided into American English and British English, but North Korea and South Korea speak almost the same.

You're only right about 30%. First of all, British English and American English are pure English, and there is no more advanced and fashionable saying. It is true that Koreans can understand Korean, but it is not absolute. This should follow the historical roots. In those days, the land in Jilin almost belonged to present-day South Korea, but after the defeat of South Korea, the land belonged to present-day China, so some Koreans stayed there that year, thus giving birth to Koreans. I don't know much about this history. You can check it yourself. Anyway, this dialect exists in most Korean languages, but now those words have been abandoned by Koreans and more English words have been included. There are also the word order, suffix and prefix words of Korean itself. These grammars are different from the spoken methods in Korean, so they are completely unrecognizable at first glance. The second is pronunciation and intonation, which is very different from Korean and Korean. Korean is faster, Korean is slower, and the overall tone is mild, while Korean is the opposite. The third point is about social problems. When I was in Korea, I saw a Korean friend shopping at the mall. It took him about 2-3 times to understand what he said, and many people walked by smiling. After all, it is different from the local language, causing jokes. In short, Korean and Korean are very different. Although I don't know what the specific question you want to ask is, I think I have explained it to you clearly. Just think of Beijing dialect and Cantonese, both of which are Chinese. Can you understand better? Well, that's my answer and my correction. I hope I can help you. I hope the landlord will adopt it. Thank you.