I am from Qingdao, and it is said that there are many Koreans in Qingdao. When Lee Myung-bak visited Qingdao, the data given by the consulate was said to be 1.5 million. If you want to add Laoshan Chengyang to the old city of Qingdao, it will cost more than 3 million. Not counting counties and cities, this ratio is too high. However, we should also divide into circles. If you don't touch it, it's like nothing. I have only had two Koreans of the same level in high school for so many years, and I have never been in contact with Koreans since. So learning a language is like this. Even if there is an environment, it is good to enter it.