The original English seems laborious, but it's really great! How can I put it? The key is that ros' attitude towards technical analysis is deep in my heart. Although my level is very low, I totally agree with ros's attitude towards technical analysis! In addition, this book should be about futures trading. I'm not familiar with the futures market, but I think it's also suitable for the stock market. On the contrary, there are so many gaps in the domestic commodity futures market that ros recommends the daily line system instead of the daily line system, but it cannot be used.