Also, I want to give everyone a hint about the reason why we only do it once when reaching the support level: After the price reaches its initial downward position, the support is there, and there is usually an opportunity for fast in and fast out. However, if it reaches the same level for the second time, this opportunity will become smaller and can be avoided, The reason is also very simple. The strength of short-term support itself is limited, and the short-term customers received after one transaction will change from multi army to air force. This part of profit taking will offset the support, and even break through, BTC