If it is a regional environment, Hong Kong and Shanghai are the best. Speaking of training centers, many adult English training centers are taught by foreign teachers. The environment is good and the price is expensive. Generally, it is more than 10 thousand or more, depending on your level and the level you want to learn. Wall Street, EF and Webb are all good choices. I learned it at Weber, and it feels good. But it depends on the place. Jinan Weibo's is good.